Secret Tennis Ball Compartment

In this Instructable I will teach you how to make a tennis ball compartment. For this all you will need is a tennis ball and a serated and pointy knife.

Step 1: Cutting the Ball

All you do is find the longest stretch of straight white line on the ball and saw along the line after a while stab your knife through the white line and saw down the straight line.

Step 2: How to Open

To open it you have to put you thumb and your index finger either side of where you cut and squeeze as I am doing in the photo.