Where can I buy colorful, wacky dress-up clothes for camp?

I go to a sleepaway camp and I need some wacky clothes for the color war type thing we have. I already bought things like fishnet stockings in crazy colors and metallic spandex shorts but I need some more stuff! I was looking to buy some wacky tutus somewhere but I'm not sure where. Tutus, bandannas, headbands, crazy socks, anything!