My first cosplay wasn't actually that horrid, I was Minatsuki Saya from Black Cat and she just wears this simple yukata. I styled my own hair and all in all, didn't look too bad.
My second, however... I was Skuld from Mythical Detective Loki. I had on a $3 wig from Wal-Mart that I tried putting up in pigtails. I made her pink dress from, of all things, cotton jersey (what was I thinking?) and my boots were spray-painted red that gradually flaked off as the day went on. It looked awful.