In Papua New Guinea, the Mountain Ok people (not a single community, but a cultural cluster of different linguistic communities with several aspects of culture in common) use a system for counting on their bodies. There is some variation, but the most use a system of 27 points going from the right thumb, through the arm, head, other arm, and the other set of fingers. Google "Oksapmin counting system" for images.
So aside of using more of the body this system is equivalent to holding up fingers, except for the fact that they have no words for numbers other than these gestures. To indicate a given quantity you point at the corresponding body part.