I have a great idea for a business, but would anyone ever really care about it?

I have an idea that is very similar to Threadless. They produce t-shirts, but the community produces the designs. Here's the basic idea.

1) Artist creates design
2) Community votes
3) Most popular designs get printed onto shirts
4) Threadless produces/sells said shirts
5) Artist gets a percentage of the profits.

You get the idea right? Well what if someone did this only with automotive stuff? Taillights, headlights, shift knobs, steering wheels, body kits, spoilers, etc.

Would you support this? Would you vote on things? Would you buy something?

Sorry for lack of details. It's a super rough idea.