A great little site that allows you to upload your own 3D models to be printed into real life versions !
They charge by how much material is used so it may be wise to hollow out the interior of it to save money. Also all meshes must be water tight no gaps in the mesh at all.
Here is a promotional video on how its done http://gizmodo.com/5041836/shapeways-allows-you-to-materialize-any-3d-ob...
Here are some really interesting designs people have printed.
Flexiable mesh http://www.shapeways.com/model/3302/flexmesh.html
Interlocking sphere http://www.shapeways.com/model/776/starfish_orb.html
a Teapot that neffy had printed her self for $19.94 (many lawls)
I choose the transparent material and another in a solid material ($13.46) is in the post right now. The lid was too thin and warped a little during printing but it still sits on top nicely.
It has a bottom but the material is really really see through in that part =D
Its so cute ^_^