Netroids.net has been the place to go for original and fan art paper toys. James has transforming animalian robots, gigantic poseable action figures, and even a magical Netroids Miner model, which you can easily decorate with a classic Minecraft skin.
One of the latest toys is Javelin - two sheets of cardstock build into a menacing and quite large beast-o-bot!
You can grab the free-to-print black and white version or get the full-color version at the Netroids Paper Toys shop. You'll find many other papercraft models and even original origami designs.
Take a look!