I like the idea of using base 3 (if someone deemed hand signals necessary for their team instead of words for one reason or another). That said, you only need 3 positions total for each finger. So, 0, 1, 2. (Compared to base 2 with only 0 and 1). So I would just do no finger for 0, curled for 1, and extended for 2.
Bookmarks