How to make (or where to buy) the "color hand bands" for Nerf Cosmic keep-away?

You throw around the ball, and it detects the band your wearing. so if the person wearing the red band, catches the ball, it will say "Red Caught the ball! New round?" or something like that. so, how do you make those bands? Or, Where can i get them?

PS i know it dosn't sense color. i tried that already, there's somethings inside of the bands

Arano6 years ago
maybe there is some kind of rfid tag inside the bands