Complete Two Ball Sponge Ball Routine by L. C. Collier
Sponge balls are some of the best props you can imagine. They are cheap, light, can be pressed tiny, easy to manipulate, appropriate for kids and adults, and are very visual.
This routine plays big for walk around, close-up and street magic. Collier used this one often as opener to gather a crowd. You will need three sponge balls! The manuscript includes Collier's entire patter.