The MIT IO Brush is a real world Photoshop like clone tool (you click on part of an image and it will replicate it else where in a paint brush format). The wooden looking brush has a built-in digital camera that snaps a photo of a moving or still image. Once a pic is taken the brush is then placed on an interactive screen where it will paint the recorded image.

MIT’s IO Brush: Your Ink is the World [GearLog]