Halloween is such a big business that companies around the world churn out hundreds of different types of costumes each year to satisfy consumer demand, even though many of them are costumes nobody ever asked for.
Because these companies make so many cheap and crappy costumes a lot of them end up hanging on the clearance rack until they're thrown away or donated to a thrift store, unwanted costumes waiting for Jenny Nicholson to make fun of them:
Amongst this funny fashion show was a boy’s Scorpion King costume, a sexy “One Eyed, One Horned Flying Purple People Eater“, a fun Plo Koon Costume (Star Wars) and a rather ill fitting vampire costume, just to name a few.
-Via Laughing Squid