I remember my mother forgetting a flash drive here a while back - 256MB and she'd gotten it "free" with some computer magazine's name on it. She had the information on a CD and told me to just wipe the flash drive as it wasn't large enough to be useful much longer. The genealogical data file she had on it was 95% of the drive and she'd just updated the file at home with additional family tree information - it was now too large for that drive.
I saved the "set up your network password" information to it and set it aside, as it was perfect for that - not much room for other files so nobody "borrowed" it and wiped it trying to get everything on it. When I sold a computer, I bundled it with that flash drive and moved the "set up your network password" file to a 512MB flash drive.
We do have one flash drive with the Geek Squad logo on it, but at 8GB, it has room enough for a LOT of information!
I still think having your name on the drive itself (not as a file inside it) is a way to remind people that you might want it back....or at least be able to track it if you leave it with Ada who hands it off to Bob, who thinks that left it with Charles, who is sure that Dana has it now....but Ed might have picked it off her desk to use when Frank had some information on HIS computer (next cubical) that he needed to copy & take back to his work area......and......at least if it says "EHellion" on it you can prove it is YOURS. Or perhaps a pair of red rhinestone lips would get the point across........