Dipping my toes into 3D CAD modelings and looking for an idea for a small part to make a 3D model of and send off the file for reproduction quotes. 3D printing it appears to be a cheap option but doesn't scale well, injection molding seems to be viable if it's something that would sell well (100s to 1000s or more units).
After I learn a bit more about this stuff, maybe larger parts will be possible. If I can create a good 3d model, large things like headlight housings should be possible. Since the 3d model is hand made, it could be possible to modify it to fit modern lights that are available and such. I doubt there's big money to be made off this stuff, but I find it interesting to check out.
Anyway, I define a small object like 2x2x2in or smaller, less features it has the better (the more of a raw shape like a circle etc is better). I'm thinking something like gas tank rubber mounts, seat rubber mounts, tail light hanger, etc. I'm looking more for a hard plastic part though like a chain slider but smaller. I have a bunch of ideas, but of course ideas are not all profitable.
Of course, I only want to target out of production parts.