Leef Spark USB Drive
The Leef Spark USB drive stands out from all those other thumb drives for two reasons. First, it has a magnetic cap that lets you stick the drive on your bulletin board, refrigerator or what-have-you when not in use -- so you won't lose it. Second, the Spark displays a thin band of light when it's working, just for fun. On top of all that, it's shockproof and waterproof.
The Spark is available in 8GB, 16GB and 32GB.