The Halloween Masks were dropped on Halloween of 2002. They come in three different colours: Red, Blue, and Green. I am just going to simplify them by placing all 3 colours in one description. The Masks can all be worn, and a lot of players like to look spooky or whatever so they are always wearing them around where they go. In terms of rarity/price, Red is the most expensive, Blue is in between Red and Green, and Green as you may have guessed already is the least expensive. There isn't really much to them other than that they look like a mutant bunny with horns.