"Aquacadets are encouraged to attend these events and the band's concerts in costume. These costumes often include official rashguards, helmets, belts, and masks that are available as part of the band's merchandise catalogue, but also often consist of homemade items. Some members have even formed splinter factions such as the "Astrobats," "Piratebats," and "Ninjabats" and outfitted themselves with homemade t-shirts and other apparel to show their support for the band."
Also, I ask that you read the entire Instructable before you get too exited and just print out the templates and go.
Enough blabbering, let's get going!
Step 1: Materials Needed
-Sewing Machine (If you don't own one you can do it by hand, but it takes a long time)
-Printer and paper (For the templates)