For fun? Well, my kids aren't teens yet, so I hope you don't mind.
Child #1 - knits and crochets - often making up her own patterns. You bet this counts as Occupational Education (think Home Economics).
Child #2 - draws, draws, draws, draws, and draws some more. This child will most likely work for Disney as an animator. After giving some to grandparents and great grandparents, we give the rest away to the residents of a nursing home.
There are many other things they do for fun, but yarn and colored pencils constitute much of the clutter lying around my house.
Here in Washington State, your child doesn't even have to actually make or perform anything, unless the college of choice requires it. The law says we must teach "Art Appreciation" and "Music Appreciation." This is great for non-artists, because one may study and appreciate fine arts even if one has no desire to pursue doing them. Fulfilling that requirement is easy. Many art museums offer a free admission day once a month. Local symphony orchestra concerts are inexpensive. Small dance companies and tiny theater companies (performing art) are another great value for your money. Cultural events such as Chinese New Year or St. Patrick's Day will most likely include dance performances, and you get Social Studies to boot! Public libraries often have videos of classics like the Nutcracker, Shakespeare and Gilbert & Sullivan, as well as access to online art databases (for instance, you can see Van Gogh's "Starry Night" right on your computer screen). Get information on what you're looking at or listening to, write papers about your experience and what you learned about the work, and voila! You've got fine art credits even if you're not artsy!