What you needFunnel
Plastic Pellets or Birdseed
If you don’t have pellets then try using birdseed.
Use a funnel and fill a whole balloon with the pellets. This is a slow process but well worth it.
Cut the neck off the filled balloon. Cut the neck off a second balloon and place it over the filled balloon covering the open hole. Now you should have a completely covered ball with no pellets popping out.
For a hacky sack you need them to be super strong so add another 2 solid balloons with the neck removed.
Take a balloon and cut some holes in it with the tips of your scissors. Remove the neck of the balloon then open it up and place it over the ball.
The colored balloon underneath should be showing through the holes and giving it a nice colorful pattern.
Repeat this with several layers of balloons and holes adding to the effect and also the the strength.
Try to arrange it so the original pellet hole is always covered by a firm piece of balloon and not a balloon hole.