If M.C. Escher had owned fidget toys, he would have worn "One ring to rule the ball" as a pendant. A single, continuous line contains a small ball that makes orbit after mesmerizing orbit but cannot escape, always held down in four directions. Available in solid, durable stainless steel with optional antique bronze and gold plated finishes to fit any context, "One ring to rule the ball" now also includes a free rubber necklace so that you can confuse your mind any time the fancy strikes you! One customer echoes many others in saying, "I couldn't put it down. This thing is just too fun!"

Purchases by those gracious customers have now paid for the design time on this piece so it is available on a pay-what-you-want basis. Ordering from this page contributes 5$ towards continuing work such as the new, even more impossible "One ring to pwn the ball" (just released October 18th!) which can be found at http://www.shapeways.com/model/145172/one_ring_to_pwn_the_ball.html and the open-source "Ultimate Desk Toy" at http://www.shapeways.com/model/109166/ultimate_desk_toy.html . To download the original 3d file for your own use under a CC-BY license ( http://creativecommons.org/licenses/by/2.5/ca ) click "Download" at top right . To learn more about this design or other work from Terra Cotta, visit our website at http://www.terracottapf.com

A design inspired by starfish dancing together in the ocean, this fluid, intricate pendant deserves a place close to the heart--yours or a loved one's. Available in solid, durable stainless steel for lasting quality in a variety of finishes; black and white glass for a classic, delicate look; or sterling silver for a refined elegance that will feel comfortable at any occasion. Matching earrings available at http://www.shapeways.com/model/52035/starfish_kanga_earrings.html

To learn more, visit our website at http://www.terracottapf.com

This unique pendant by a guest designer uses four Ichthus fish, or Christian fish, to form a cross, with an additional small cross in the middle. Available in solid stainless steel with optional bronze antiquing or gold plating; and in sterling silver. To learn more about this design or other work from Terra Cotta, visit our website at http://www.terracottapf.com

This beautiful design is a level 2 approximation to a Menger Sponge, measuring 1.4 cm on each side and suitable for use as a pendant or small and stylish paperweight/knicknack. Available in solid, durable stainless steel for lasting quality. Matching earrings available at http://www.shapeways.com/model/74647/level_2_menger_earrings.html

Learn more about this design at http://en.wikipedia.org/wiki/Menger_sponge or visit our website at http://www.terracottapf.com

A design inspired by starfish dancing together in the ocean, these fun, intricate earrings will let you carry the beach with you. Available in stainless steel with optional bronzing or gold plating for daily wear with heirloom-level durability; or in elegant and refined sterling silver for special occasions. Matching pendant available at http://www.shapeways.com/model/52034/starfish_kanga_pendant.html Silver plated earring hooks included. To learn more, visit our website at http://www.terracottapf.com

A strong, sturdy, surprisingly sharp claw that would be the envy of any preying animal. Wearing this won't turn you into Wolverine--think more like someone who beat up Wolverine Jr in a bar fight and took a trophy.

Smooth, curving lines of steel gently draw your gaze and mind to this unique 10 cm desk toy. Made from solid, durable stainless steel for lasting quality, it holds a spinning axle or gravity toy of your choice on pinpoint pivots. A fully customisable nameplate makes this the most unique and personal desk toy in the world--as with all Terra Cotta co-creators (unless specifically labelled otherwise) the text you choose may be in any language or character set on earth. Options include a floating globe, a smooth spiral that dances with your mind, and a spinning version of the design from http://www.shapeways.com/model/52936/one_ring_to_rule_the_ball.html , with a surprising secret. Add this design to your favourites and check back soon to see more styles, options, and accessories; or search for the tag "Ultimate Desk Toy" to see individual pieces you can mix and match to your heart's content. Part specifications will soon be released under a creative commons license so that you can display your own designs in this holder, too! Price includes shipping anywhere in the world. Click through the images or visit our website at http://www.terracottapf.com to learn more.

This beautiful and elegant shell pendant is at once simple and personal--you choose the message hidden discreetly within. Available in solid, durable stainless steel for lasting quality. Prices include rubber necklace and shipping anywhere in the world. To learn more, visit our website at http://www.terracottapf.com

Two names, two circles, two solid objects without seams--made one. Available in solid, durable stainless steel for quality, or bright and inexpensive blue, white, black, limestone, and terra cotta. To learn more, visit our website at http://www.terracottapf.com

What you are looking at is a 17cm x 17cm x 17cm Voronoi net of something called the Clebsch diagonal cubic surface. We are using it not for its mathematical properties per se, but to display custom jewelry at retail. For those of you who weren't able to order a sample in the White Glaze material, the print is solid and beautifully smooth, with a very high quality feel to it, completely suited to a professional display environment. Since the White Glaze material is not available right now, it is available here in White, Strong, and Flexible, including the optional colours. Learn more about this design at http://mathworld.wolfram.com/ClebschDiagonalCubic.html or visit our website at http://www.terracottapf.com

These abstract designs catch the light from many angles and compliment a variety of colours. Two pieces measuring about 2.5 cm long. Available in black and white glass for a classic, delicate look; stainless steel with optional bronzing or gold plating for heirloom durability; and silver for shimmering elegance. Silver-plated earring hooks included.

To learn more, visit our website at http://www.terracottapf.com

This beautiful design is a level 2 approximation to a Menger Sponge, with two pieces measuring 1.2 cm on each side. Available in solid, durable stainless steel for quality. Matching pendant available at http://www.shapeways.com/model/55401/level_2_menger_pendant.html Earrings now come with silver plated earring hooks! Prices include shipping anywhere in the world. To learn more about this design see http://en.wikipedia.org/wiki/Menger_sponge or visit our website at http://www.terracottapf.com

This smooth and stylish polar bear pendant is the perfect way to embrace winter weather in the Northern Hemisphere, or pine for it from the Southern. Available in snow-textured nylon, and solid stainless steel with optional bronze antiquing or gold plating. To learn more about this design or other work from Terra Cotta, visit our website at http://www.terracottapf.com

The powerful, chiseled features of the bison, or American buffalo, evoke strength and nobility in this finely detailed bison pendant. Available in solid stainless steel with optional bronze antiquing or gold plating. To learn more about this design or other work from Terra Cotta, visit our website at http://www.terracottapf.com

This stand, made with letters spelling your personal message, holds cards or photos in a refined, minimalist look suitable for weddings, romantic dinners, and fireplace mantles. To learn more, visit our website at http://www.terracottapf.com

Confused? Try viewing it in 3d to see what all the fuss is about. Then co-create to put your face and initials here.

This 10cm stand, part of the Ultimate Desk Toy family, can hold sculptures, spinning axles, balancing gravity toys, and much more. Here, I place small neodymium magnets into the cones and build sculptures with paperclips. Magnets and other accessories not included--to order with a spinning or balancing toy, order from http://www.shapeways.com/model/109166/ultimate_desk_toy.html . To learn more, visit www.terracottapf.com

A symbol of humanity, connection, and permanence, the Inukshuk was born to be worn proudly on your neck as this solid, textured Inukshuk pendant. Available in solid stainless steel with optional bronze antiquing or gold plating. To learn more about this design or other work from Terra Cotta, visit our website at http://www.terracottapf.com

This snowflake bauble ornament is the perfect cool and personal gift for a discerning friend, or a touch of class for your own home in years to come. Made up of twenty flakes just lightly touching each other at the tips, the gaps between form five pointed pseudo-snowflakes through which you can view two initials of your choice dangling freely inside. Seamless and fully interlocking as only modern 3D printing technology can achieve, there is nothing to betray the simplicity and unity of this quality, individually-produced piece. For $23 in materials plus $2 for the customisation this piece can be yours in white, snow-textured, high-grade nylon, worldwide 12 business day delivery included. Lightly translucent, the white is able to take on the colour of a nearby LED Christmas light. Or, for a little more you can choose from black, Christmas red and green, dark blue, and sparkling metallic alumide. Unlike a glass bauble, the SnowBauble can survive falling or being knocked down, ensuring that a set purchased today will truly last for generations to come. And for true heirloom status, the piece is available in Stainless Steel with optional Matt Bronze, Glossy Bronze, Matt Gold Plated, and Glossy Gold Plated finishes. The SnowBauble measures approximately 7 cm across, with the size and thickness carefully adjusted specifically for each material you order in. Due to brittleness, the SnowBauble will only be available in glass by special request. To learn more, or for questions and special requests, visit our website at www.terracottapf.com

This snowflake bauble ornament with inscription makes the perfect “first christmas”, loved one's treasured gift, or touch of class for your home in years to come. Made up of twenty flakes just lightly touching each other at the tips, the gaps between form five pointed pseudo-snowflakes through which you can view the words you've chosen on a shape dangling freely inside. Simply describe the simple outline you want in words (or link to a picture of it), include a short inscription, and a designer will personally create your one-of-a-kind piece, contacting you personally if the shape you've chosen needs modification to work properly. With seamless and fully interlocking pieces, as only modern 3D printing technology can achieve, there is nothing to betray the simplicity and unity of this quality, individually-produced piece. For $30 in materials plus $10 for the customisation this piece can be yours in white, snow-textured, high-grade nylon, worldwide 14 business day delivery included. Lightly translucent, the white is able to take on the colour of a nearby LED Christmas light while the words of your inscription vividly contrast by shadowing it. Or, for a little extra you can choose from black, Christmas red and green, dark blue, and sparkling metallic alumide. Unlike a glass bauble, the SnowBauble can survive falling or being knocked down, ensuring that a set purchased today will truly last for generations to come. And for true heirloom status, the piece is available in Stainless Steel with optional Matt Bronze, Glossy Bronze, Matt Gold Plated, and Glossy Gold Plated finishes. The Designer SnowBauble measures approximately 8 cm across, with the size and thickness carefully adjusted specifically for each material you order in. Due to brittleness, the SnowBauble will only be available in glass by special request. To learn more, or for questions and special requests, visit our website at www.terracottapf.com

"Battle for Infinity" is a stylised infinity symbol pendant where you personalise the material and the style. A smooth, flowing surface and a pattern reminiscent of an ammo belt chase each other around a design, the lemniscate, that has been used to symbolise eternity, perfection, dualism, and reincarnation.

A lot of glass objects are organic and smoothly flowing. But 3D printing creates new opportunities, and I wanted to make some designs that showed the potential of the material to be edgy, crystalline, and eye-catching. "Ice", a design in 3 styles, is the result of that. Based on a three dimensional tessellation inspired by the crystalline structure of ice, these objects are all near the maximum size of glass sculpture printable, yet still reasonably affordable as desk art or one-of-a-kind gifts. The plateau style focuses on form and simplicity, and is available in a variety of other materials in addition to glass.

A lot of glass objects are organic and smoothly flowing. But 3D printing creates new opportunities, and I wanted to make some designs that showed the potential of the material to be edgy, crystalline, and eye-catching. "Ice", a design in 3 styles, is the result of that. Based on a three dimensional tessellation inspired by the crystalline structure of ice, these objects are all near the maximum size of glass sculpture printable, yet still reasonably affordable as desk art or one-of-a-kind gifts. The summit style symbolizes value and achievement, and is available in a variety of other materials in addition to glass.