The die's faces are supported by springs meeting in its center.
Printed and tested OK.
Copyright ©2011 Ovidiu Opresco

The die's faces are supported by springs meeting in its center.
Printed and tested OK
Copyright ©2011 Ovidiu Opresco

Already printed and tested in nylon OK.
Copyright ©2011 Ovidiu Opresco.

See my other Roosevelt Island Tram designs here:
Slice of Big Apple with Roosevelt Island Tram
The New Roosevelt Island Tram Earrings
The New Roosevelt Island Tram Cuff-Links
Pendant / Keyring with Roosevelt Island Tram
Keyring with Roosevelt Island Tram
Soccer Ball with Roosevelt Island Tram inside
Big Apple with Roosevelt Island Tram inside
Ring with Roosevelt Island Tram
Roosevelt Island Möbius Bracelet with Roosevelt Island Tram
Geocube with Roosevelt Island Tram inside

Made for Henri Coanda Association: http://www.jet100.com

Most people won't be able to tell how your keys were inserted on the ring!

1. Insert your keys. 2. Flex and force the end into the hole - to secure. Has Shapeways Logo on one side and "3d Printing" on the reverse. I created this novelty keyring while testing the flexibility and resilience of Shapeways' Stainless Steel.
See more keyring designs here:
Keyring with Roosevelt Island Tram
Keyring with Orthodox Cross
Keyring with Cross
Keyring with Star of David
Keyring with Twisted French Curve

1. Insert your keys. 2. Flex and force the end into the hole - to secure. I created this novelty keyring while testing the flexibility and resilience of Shapeways' Stainless Steel.
See more keyring designs here:
Keyring with Roosevelt Island Tram
Keyring with Orthodox Cross
Keyring with Star of David
Keyring with Shapeways Logo
Keyring with Twisted French Curve

Most people won't be able to tell how your keys were inserted on the ring!

1. Insert your keys. 2. Flex and force the end into the hole - to secure. I created this novelty keyring while testing the flexibility and resilience of Shapeways' Stainless Steel.
See more keyring designs here:
Keyring with Roosevelt Island Tram
Keyring with Cross
Keyring with Star of David
Keyring with Shapeways Logo
Keyring with Twisted French Curve

See also:
Keyring with Star of David

See also:
Keyring with Star of David

I designed this with our great Roosevelt Island Soccer Team in mind.

See my other Roosevelt Island Tram designs here:
Slice of Big Apple with Roosevelt Island Tram
The New Roosevelt Island Tram Earrings
The New Roosevelt Island Tram Cuff-Links
The New Roosevelt Island Tram / Pendant / Keyring
Pendant / Keyring with Roosevelt Island Tram
Keyring with Roosevelt Island Tram
Big Apple with Roosevelt Island Tram inside
Ring with Roosevelt Island Tram
Roosevelt Island Möbius Bracelet with Roosevelt Island Tram
Geocube with Roosevelt Island Tram inside
****************************
See other Soccer Ball (A.K.A. Truncated Icosidodecahedron) related designs here:
Soccer Ball Earrings
Soccer Ball Ring
Soccer Ball with Roosevelt Island Tram inside
Soccer Ball Pendant
Soccer Ball with American Football Inside #1
32-BIT SOCCER BALL DIE PENDANT
Soccer Ball with American Football Inside #2
Soccer Ball Pendant /Keyring
Dutch Shoe Inside Soccer Ball #1
Soccer Ball with Dutch Soccer Shoe Inside
Peace Ball

"I CROSSED THE EAST RIVER ON THE ROOSEVELT ISLAND TRAM" lettering all around the singular face of the Moebius band.

Hear "Crossing The East River On The Roosevelt Island Tram" – original lyrics by Jonathan Kalb & Ovidiu Opresco, sung by Jonathan Kalb.
See movie Crossing The East River on the Roosevelt Tram by Ovidiu Opresco

See my other Roosevelt Island Tram designs here:
The New Roosevelt Island Tram Earrings
The New Roosevelt Island Tram Cuff-Links
The New Roosevelt Island Tram / Pendant / Keyring
Pendant / Keyring with Roosevelt Island Tram
Keyring with Roosevelt Island Tram
Soccer Ball with Roosevelt Island Tram inside
Slice of Big Apple with Roosevelt Island Tram
Big Apple with Roosevelt Island Tram inside
Ring with Roosevelt Island Tram
Geocube with Roosevelt Island Tram inside

I've coined the word "Geocube" because it is actually a cube projected on a sphere.

Most people won't be able to tell how your keys were inserted on the ring!

1. Insert your keys. 2. Flex and force the end into the hole - to secure.
I created this novelty keyring while testing the flexibility and resilience of Shapeways' Stainless Steel.
See more keyring designs here:
Keyring with Roosevelt Island Tram
Keyring with Orthodox Cross
Keyring with Cross
Keyring with Star of David
Keyring with Shapeways Logo
Keyring with Twisted French Curve

See my other Roosevelt Island Tram designs here:
Slice of Big Apple with Roosevelt Island Tram
The New Roosevelt Island Tram Earrings
The New Roosevelt Island Tram Cuff-Links
The New Roosevelt Island Tram / Pendant / Keyring
Pendant / Keyring with Roosevelt Island Tram
Keyring with Roosevelt Island Tram
Soccer Ball with Roosevelt Island Tram inside
Ring with Roosevelt Island Tram
Roosevelt Island Möbius Bracelet with Roosevelt Island Tram
Geocube with Roosevelt Island Tram inside

See my other Roosevelt Island Tram designs here:
The New Roosevelt Island Tram Earrings
The New Roosevelt Island Tram Cuff-Links
The New Roosevelt Island Tram / Pendant / Keyring
Pendant / Keyring with Roosevelt Island Tram
Keyring with Roosevelt Island Tram
Soccer Ball with Roosevelt Island Tram inside
Big Apple with Roosevelt Island Tram inside
Ring with Roosevelt Island Tram
Roosevelt Island Möbius Bracelet with Roosevelt Island Tram
Geocube with Roosevelt Island Tram inside

High Bounce, Very squishy!
Already printed and tested OK in nylon.
Copyright ©2011 Ovidiu Opresco.

1. Insert your keys. 2. Flex and force the end into the hole - to secure. I created this novelty keyring while testing the flexibility and resilience of Shapeways' Stainless Steel.
See more keyring designs here:
Keyring with Roosevelt Island Tram
Keyring with Orthodox Cross
Keyring with Cross
Keyring with Star of David
Keyring with Shapeways Logo
See more French–Curves related designs here:
3d French Curves Earrings
Twisted French Curve Pendant

See other Soccer Ball (A.K.A. Truncated Icosidodecahedron) related designs here:
Soccer Ball Earrings
Soccer Ball with Roosevelt Island Tram inside
Soccer Ball Pendant
Soccer Ball with American Football Inside #1
32-BIT SOCCER BALL DIE PENDANT
Soccer Ball with American Football Inside #2
Soccer Ball Pendant /Keyring
Dutch Shoe Inside Soccer Ball #1
Soccer Ball with Dutch Soccer Shoe Inside
Peace Ball

• 12 faceted die based on the Rhombic Dodecahedron.
• Related designs:
Rhombic die (2.5 cm)
Keyring with Rhombic Die
Rhombic Die Ring

• Related designs:
Rhombic die
Rhombic die (2.5 cm)
Keyring with Rhombic Die

See my New Spring-Loaded Dice:
Spring-loaded 30-sided die.
Spring-loaded Icodie.
Spring-loaded die.
***************************************
• Click on PERSONALIZE to order your size.
Available ring sizes:
US Ring Size 6.5
Inside Diameter: 16.92 mm / 0.666 in
Inside circumference: 53.15 mm / 2.09 in
US Ring Size 7
Inside Diameter: 17.32 mm / 0.682 in
Inside circumference: 54.41 mm / 2.14 in
US Ring Size 8
Inside Diameter: 18.14 mm / 0.714 in
Inside circumference: 56.86 mm / 2.24 in
US Ring Size 9
Inside Diameter: 18.95 mm / 0.746 in
Inside circumference: 59.69 mm / 2.34 in
US Ring Size 10
Inside Diameter: 19.76 mm / 0.778 in
Inside circumference: 62.20 mm / 2.44 in
US Ring Size 11
Inside Diameter: 20.57 mm / 0.81 in
Inside circumference: 64.72 mm / 2.54 in
US Ring Size 12
Inside Diameter: 21.39 mm / 0.842 in
Inside circumference: 67.23 mm / 2.65 in

Shows the duality between the Icosidodecahedron and Rhombictriacontahedron

During the late 70's and early 80' I became highly fascinated by Polyhedra and its Duality.
Intrigued by the little known fact that Plato and Archimedes described their wonderful objects by drawing them with just a stick on the sand, I set up to replicate (well, more or less :-) their extraordinary feat by strictly using only a "T" square, a pair of Compasses, a set of 2 Triangles, and a Ruler.
For the next 5 years I practically lived inside Polyhedra :-) and, what I used to call "The Archimedes' Curse", ended up to be, in fact, "The Archimedes' Blessing"!

The Polyhedral Sculptures depicted below were hand made (from scrap offset plates) and assembled with machine screws from stackable modular pieces. The modules were drawn/designed on a drawing table while strictly using only a "T" square, a pair of Compasses, a set of 2 Triangles, and a Ruler.

POLYHEDRAL SCULPTURES / Scored and folded aluminium offset plates, machine screws & nuts (©1981)

MODULAR POLYHEDRAL LAMP DESIGN (©1981) / Scored and folded aluminium offset plates, machine screws & nuts (©1981)

Based upon wonderful knowledge I accumulated hands-on during the 1980's while exploring "the extraordinary spatial diversity that emanates from the sublime order and elegant simplicity that is exemplified by the subject of polyhedra." (Quote from the Preface to the wonderful book POLYHEDRA PRIMER by Peter Pearce and Susan Pearce)

I was extremely pleased when, a few years back, Prof. George Hart (Department of Computer Science, Department of Computer Science, STONY BROOK UNIVERSITY) included some of my Polyhedral Sculptures, alongside work by Buckminster Fuller and other great designers in his comprehensive COURSE STUDY: COMPUTER SCIENCE AND SCULPTURE (pg. 39-40, OPRESCO).
===========================================

See related designs here:
Polyhedral Sculpture #22A
Icosidodecahedron Pendant
Polyhedral Sculpture #22
Polyhedral Sculpture #21
Polyhedral Sculpture #23
Polyhedral Sculpture #21A
Polyhedral Sculpture #23A
Polyhedral Sculpture #23B
Polyhedral Sculpture #24
Polyhedral Sculpture #20
Polyhedral Sculpture #25
Polyhedral Sculpture #20 A
Polyhedral Sculpture #27
Polyhedral Sculpture #28A
Polyhedral Sculpture #29A
Polyhedral Sculpture #29B
Polyhedral Sculpture #28B
Polyhedral Sculpture #30A
Polyhedral Sculpture #30B
Polyhedral Sculpture #30C
Polyhedral Sculpture #30D
Polyhedral Sculpture #31
Desk Toy BALL
Icosidodecahedron Pendant
Dodecahedron - Pendant

Can be worn by people as a regular bracelet.