Here's what you'll need
-a bag of black helium balloons
-white felt
-scissors
-tape
-glow sticks (optional)
-Nerf guns or ping pong balls

Step 1: Blow up balloons.

Step 2: Create your own ninja masks by cutting a face-shape and eye holes in the white felt.

Step 3: Tape the mask onto your balloon.

For glow in the dark fun: Turn to the dark side by inserting active glow sticks into the balloons before inflating. Then, turn out the lights and let the ninja hunt begin!

The game: Enlist leftover party balloons into a hit squad of stealth ninjas. Scatter your ninjas throughout the house and let your children loose armed with Nerf guns or ping pong balls.

Tip: Helium balloons tied or weighted down work best for an army of floating ninjas but sticks can help your balloon ninjas to peer out from bookcases and sofa backs.

For more fun activities to try with your kid, here's our recipe for slime.