Heart shaped charm/pendant for a necklace w/ chinese symbol

I have two 3d ring designs with a moving part. I would like the rings to be printed in steel and assembled after printing manually such that the moving part is inserted easily in the ring. Manual assembly can involve a lock, a latch, or screw mechanism that snaps the ring together never to come apart. The rings will be printed on shapeways.com.

Concept designs for 2014 Burning Man Mutant Vehicle Project based on 26’ GMC Motorhome with a stegosaurus appearance. Design must radically alter the exterior of the base unit while minimizing the costs and difficultly of the alterations. Winning design will move forward to more work on mechanical design for the build out.

I have 3D probed/scanned an object that I need to recreate on my CNC router. I'm using Vectric VCarve Pro software- but its limited in it's 3d editing capabilities- Vectric Aspire is what I would need, but do not have the funds to upgrade at this time. So what I need is this object rendered fully in a 3D model (the other half is the same as what was scanned already (mirror image)- AND, the other side of the object has a contour to it. I have yet to probe that side, but would just do a small portion, and that can be extended to create the backside "carve". So I need to do a 2-sided machining of this object. I assume an .stl file or similar would be what I need.

Looking for a 3D model of my crashed car, that would be printed in some metal on shapeways for a keychain. If you can keep it as close to the photos as possible thats great.

I need a controller designed for a project of mine. It's for a video game system. Things to keep in mind I would be getting the controller made, so there has to be enough room for the hardware on the inside.