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 catalog, 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.