I find this to be similar to the Help! Drain Stopper. Instead of just a hand, the Buddy Drain Stop has the top half of a body included as if it he is drowning in a pool of water. Made of flexible plastic, it should fit most bathtub drain openings.
Drain stoppers are certainly evolving now into items that are more fun to look at. This one here is cleverly designed to compliment a modern bathroom with its cute appearance.