Cool Optical Illusion Collection #4

Crazy Cube - Just playing with your mind

Here a crazy cube that just plays with your mind, doesn't it? First, it appears as one cube with a chunk cut out of the corner, then, after you look at it awhile the chunk starts to look like a floating cube.

As I was watching the move Office Space recently, I noticed that Intech's logo is actually made up of three of these cubes. Has anyone seen my red swingline stapler?