Fine mesh resembling a dodecahedron.

This butterfly is made from equations describing a chaotic attractor with 16 parameters. It makes a great pendant.

There are two through holes on the back side to feed a necklace through.

Also, see the version withthout holes on the back side:
http://www.shapeways.com/model/129241/ailes_de_papillon___plain.html?gid=ug33247

See here for a description and smaller version.

Hanger and earrings based on a Voronoi algorithm with random point seed in a cube. Enjoy!