Pretty good friend of mine makes costumes. Normally I can't think of a community that would care enough for me to post a link for it, but, everyone at one point or another wanted to dress up as Duke Nukem and if you didn't, you were probably a Nancy-boy.
http://www.freewebs.com/xccute/ I've known her for abit, so I can give her my recommendation. She works pretty quick, is easy to contact, and can be really cheap if you request the right sort of costume.