This might not be as creative and crazy as the many other inventions out there, but this is a straight up simple DIY Macbook Pro cooler! You'd be surprised about how many people are concerned about heat issues associated with the Macbook Pros, so here is an easy solution.
A mini cardboard prop box 3"x4"x.75" placed underneath the laptop. The angle of the screen will funnel all air into the vents of the Macbook pro and also underneath the laptop itself. Works likes a simple charm. Also great for the summer because it keeps you cool too.