Accused of being fake, witchcraft and simply impossible..
This kinetic sculpture is inspired by the unlimited freedom of 3d printing,
it wobbles and turns with a slight movement of the hand.
Now give it a good spin or puff of air and it erupts in erratic and wild behavior.

This is the 5cm / 2" version, see the Gyro the Forms section for other shapes and sizes.
Corner stand available separately, or get the complete set below!

NEW!
Now also available as a pendant/keyfob!
In both Extra small and Small

Instructions
It is composed of four concentric cubes, each one spinning around a different axis.
The model needs some minor assembly:
Each inner cube has two knobs which need to be placed into the corresponding clamps in the parent cube. It's easiest to start with the inner most and continue outward.
And then... spin it away !

Notes
Do not be alarmed if your cube will not run smoothly at first!
Because of minor variations as a result of the printing process,
some need to wear in a little but will loosen up very quickly.
In the example video I am blowing on it to make it move, it's that smooth.

Be a little careful with (the assembly of) the Alumide version as this material is slightly less flexible/robust than the Strong & Flexible materials.

Get a complete set.
A default set consists of an Alumide Gyro the Cube and a White stand, you can change the materials in your cart later. +

Important notice: a lot of people have been very happy with this product, but, as can be read in some of the comments below, it's clear that this design is right on the edge of what Shapeways can produce to the right quality at this moment. If you buy it, there's a risk of having a less then perfect fit, colors can be different from what you see on the screen, and, depending on how you use your phone as well as the tolerances of the case, it has been reported that the polyamide material can give a sort of polishing/scratching effect on the metal rim of the phone (you can find descriptions online of how to remove these kind of blemishes, but it may still be annoying).
Shapeways has, in my experience, been very good with customer service on this item, so they'll be happy to either return your money or provide a new product if you would be one of the unlucky ones; but it's up to you if you want to run the risk that you may have to go through this process.

Essential protection for iPhone 4S and iPhone 4

Even though 4-4 may be the worlds lightest and smallest iPhone 4 case, it still provides great protection to the vulnerable edges of the iPhones' front and back covers - while all controls and connections remain accessible. Its slightly protruding profile helps prevent protect the glass when laying your phone down; using 4-4 can also help to avoid signal loss problems.

This bumper-style case may be combined with commercially available screen protectors. 4-4 is manufactured from tough and durable 3d printed polyamide; it has a slightly textured surface that gives you great grip on your phone. Available in white, black and limited edition colors - note that in white, the 3d printed material may get dirty more quickly - but you can (seriously!) dishwash this product, so that shouldn't be too much of a problem. The 4-4 case is designed to have a tight fit around for iPhone. To put the iPhone in the case, or take it out, start at one of the bottom corners, where there are no buttons. Colors in the images above are for reference only; please check under 'select material' to get the most up-to-date preview of currently available product colors. Product is shipped in basic Shapeways packaging.

4-4 fits the GSM and CDMA/Verizon versions of iPhone 4, as well as the new iPhone 4S.

A two pack of 4-4's in the same color is available at reduced prices here.

You can have a look at all the products in my shop here. Consider buying 4-4 together with The Wrap, a handy cable winder for the European iPhone charger.

If you have any questions or feedback on this product, please feel free to contact me directly via michiel(at)michielcornelissen(dot)com.

This is a mobius strip of Level 1 or Super Mario Bros. The whole level is wrapped around itself in a single surface, and poor Mario begins and ends at the same spot every time :(

All the elements from the level are there: every mushroom, turtle, cloud and star. They are all carved out of the surface at different heights, which looks fantastic when you have a light coming from the side, and each block casts a shadow.

It's a great piece to have on your desk, or to hang from a string to let it spin around.

Ball trapped in a spiral cage

Stylized cartoon horse - DJ

An espresso cup specially designed with fins, to ensure the successful deployment of your rocket fuel. All systems are go! Paraboloid bowl holds approximately 1.5 fl oz. or 45 mL. (Note that I previously claimed the cup held 60 mL. While my 3D modelling software still reports that as the internal volume, some combination of the printing process and glazing is robbing me of internal volume. Contact me if you'd be interested in a larger, more expensive 60 mL cup.)

After receiving feedback from Shapeways, I've created a slightly revised model for the cup. I'm told that this model will be easier to print and glaze, leading to a more reliable product. The changes are minor -- it's a little wider, a little heavier, and has more rounding on edges that were previously sharp (a 3D rendering shows the differences above).

Update (April 13th, 2013): The cup has had a great run on Shapeways, and I deeply appreciate the attention and positive feedback it has received. The bad news is that I've got to stop offering it for sale here. The good news is that the cup is now available commercially! It's being manufactured by Fred and Friends, sold under the name "Blast Off! Espresso Cup Set". It's already available for purchase online (perpetualkid.com, thinkgeek.com), and I'm sure you'll be able to find it in your favourite housewares store soon.

Show off your success (or someone else's) with this perfectly re-created sculpture based off the popular meme.

My case for Raspberry Pi computer. To be assembled with the "LED lightguide" model nr. 486757 (http://shpws.me/6yFP). This is the case everyone is talking about! ;) Features: snap-fit fixing system for the board, easy to mount/unmount; snap-fit closing system, no screw required; bottom holes for blocking the computer by screws (sliding mount); led lightguides (not included in this model, available here: http://shpws.me/6yFP ); pre-shaped hole for GPIO access, just cut it out to open. In this page you can find a gallery of shots working cases by enthusiast users! http://marcoalici.wordpress.com/raspberry-pi-case-gallery/

There are six regular convex polytopes in 4D, which are analogous to the five Platonic solids in 3D. This is the fifth, the hyperdodecahedron, a remarkably beautiful object brought to my attention by George Hart.

Here it's shown in a Schlegel diagram so you can see all 120 dodecahedral cells, though most are transformed by perspective: in this projection, the only regular dodecahedra are the biggest one on the outside and the tiniest one at the center.

A bigger model is here.