So I StumbledUpon a delightfully morbid Minecraft webcomic called Creeps. It's only just started, but I'm already a fan. Another fan made some skins of the characters, and I'm a jerk so I made some, too. I'm no skinologist but they're pretty okay maybe? (The large preview images were made using Miners Need Cool Shoes.)
If you've never used a custom skin for Minecraft, here's what you do: Copy the smaller image and save it to your computer (as a .png would be good), then make sure you're logged in at minecraft.net, change it so it reads minecraft.net/profile at the top of the page, and upload the skin file. Woohoo! If it doesn't work right away try quitting and the restarting the game.
And check out Creeps, dummy.