ahh, the art of footbag. I spent many an hour over the years sewing leather footbags. I learned the craft from a very interesting and ingenious fellow named Daniel Botkin who has a very cool website called the Footbag Peace Initiative
http://www.valinet.com/~dbotkin/ - he uses footbag and sewing footbags as a way to mend walls between race and class, and work with at-risk kids. Very Cool.
By the way Jeff, I got the bull roarers in the mail yesterday - They are sweet. I will email you some picts when I whittle out my own. What kind of "printer" did you make the templates with? Also, seeing as you make footbags - if you are interested, I can send you some templates of 8 panel and 32 panel footbags as well as a sweet star-tear drop pattern that is 12 panels. They definitely take a lot more time to sew than 4 panels but the finished product is very satisfying. What do you sew them with? I use dentil floss
I love sand-filled bags, though I haven't perfected sewing a tight enough seam to keep them from leaking little bits of sand here and there.
Barak