To play Post-It Bouncer, you need these things:
Take the Post-Its, flip them to the back, and fold them so that all the corners reach the middle. Unfold them halfway. Stack the Post-Its and fold the smaller corners.
Start bouncing the combined Post-It and try to keep bouncing it. Ask your friend to count the bounces. After the combined Post-It falls on the ground, ask your friend for the number of bounces. Write it down.