I don't actually own a 3D printer but there are services where you can upload your models and they'll print it for you ... for a cost, of course. I've never tried it before but I've been waiting for an excuse. I know of at least one place (Shapeways) that allows you to set up a shop where anyone can order a print of your model. Maybe I'll do that if it works out. My real hope is that I can cram the whole thing inside my case.