Here's one Rubik's cube you'll be able to solve it less than a minute. Each one of these 2-inch cubes has a function beyond mere puzzlement, grinding up salt or pepper by turning the top row.

Just remember that the white top is for salt, and the red top is for pepper, and then you have it licked. Too bad they're not fully functioning cubes, but two of those gadgets would be more valuable than $20.

Fredflare.com, via Geeky Gadgets