This instructable will tell you how to make an Air-Soft grenade thingy.
Step 1: Supplies
These are the supplies you need to make this grenade.
Flat Head Screw Driver
Highly Maneuverable Gloves
Step 2: Taking Apart the Popper
Insert the flat headed screw driver into the edge of the popper and pop out the cardboard cap and keep it for later.
Step 3: Removing the Confetti
This is where you might want to where gloves to protect your hands, I didn't because I'm a bad example. Carefully use the pen to remove the confetti and leave the white cardboard alone.
Step 4: Filling the Popper
Now take your BB's and pour about 20 into the empty popper and replace the cap.
Step 5: Making Sure the Cap Is On
Take the back of your pen and press evenly around the edges of the cap to secure it into place. Then aim and shoot, and it scatters the BB's every where.
P.S. I am not responsible for any injuries.