Making a costume isn't that hard. Here's how I made Adam's pirate costume (still haven't started mine and Forrest's yet.)
We were very, very low budget at the time, so I did it with virtually no money.
I took a pair of old khaki pants and rolled them up to the capri level. Then I took socks, and with a red sharpie, made stripes on them. I took a thin white t-shirt and put holes in it, and used make-up to stain it up. I did buy a yard of cheap fabric from the store and tied it around his waist. Added some a few gold chains, a cheap eye patch, and a bandana. He wore shoes he already had. I did some make-up work on him, and spent some time on that, and I blackened his teeth with eyeliner. Here's a pic....(He won 2nd place)
The next year we did a redneck costume. We found a hideous hat, I think we used the same pants, and made our own camoflauge t-shirt with food coloring. Again I blackened out the teeth and did make-up to roughen him up. *lol* He won first place, if I remember correctly.