In the spirit of the season, Microsoft has released some Halloween costumes for Avatars. There's quite a spooky selection to choose from, including ghosts, cowboys, werewolves, vampires, wizards, witches and Frankenstein's monster. For good measure, Microsoft even threw in a skeleton and a mummy. All of the outfits cost 240 ($3), but you'll need to pay another 80 ($1) if your outfit of choice features a hat. Perhaps the most frightening of all is the male Sheriff's outfit. It's something about the combination of the incredibly tight fit, coupled with the standard, effeminate Avatar pose. It just don't look right.