This is a cool grenade that is very simple to make. Perfect for battles in forests.
Step 1: Materials
You will need;
~Water balloon filler
Step 2: Attaching the filler
Attach the water balloon to the end of the filler but don't put it too far on.
Step 3: Filling the balloon
Put about 5-10 BBs in the back part of the filler. Then blow so the BBs go into the balloon.
Step 4: Finishing
Repeat step 3 about 3-4 times so the balloon about 1/4 full of BBs. Then bow up the balloon and throw it at someone.