Why use a Tennis Ball?
There are three primary reasons to use Tennis Balls. Safety, Safety and finally, Safety. I have read of so many accidents with slingshots each year that I cannot recommend them. A lead sinker flying through the air is potentially an accident waiting to happen. They bounce off the tree, the line snags and the sinker returns on the line rebound, or they get hung up and come sizzling down when the line is pulled, potentially at higher velocity than even the slingshot can impart. The slingshot is not the problem, the projectile is the problem! A Tennis ball is inherently a fairly safe projectile. They are big so they slow down quickly, limiting the distance they will travel and the velocity they impact with. They are not hard, so they tend to do little damage when they land. It is something familiar so people know what to expect. It is big enough to see fairly well. They are available and inexpensive.
