I'm in the model horse hobby: I paint commission pieces for people and paint my own models for resell (using airbrushing, pastels, charcoal, and acrylic paints). So I turn a solid white sculpture and paint them to turn them into these (some recent examples of customer's commissions):
I would say tattoos are another "hobby" since I'm getting a large piece done and have other pieces and my car which I still need to modify more (done the custom paint job on it myself and did performance mods, it just needs some more finishing before it's "done")