This is a game design project. Every square has an LED and a soft switch under it. At the beginning of the game, 3 LEDs will be turned on, and then the users need to use their body parts to trigger the 3 squares. After that, more LEDs will be turned on, so the users need to be flexible enough to cover as many squares as possible.
Step 1: Cut the Foam and the Fabric
Make sure the size is appropriate for users of different heights. And cut a small hole on every foam to make the soft switch.
Step 2: Cut Some Conductive Material
Attach conductive material on both sides of fabrics. And connect them into the circuit.
Step 3: Sew the LEDs
Put the LEDs on the corner of every square and sew them.