I saw this USB drive on Tumblr, and thought Wow, that's different.
The design by Stanislav Tatarinov takes cues from Leonardo Da Vinci's cryptex, a locking tube to hold small pieces of paper.
It's a clean use of space; on the microSD adapter option, the card inserts beneath the USB head. The locking mechanisms twist around the tube's axis, and four columns tie everything together. The concave square is a nice touch, as well. Even the hardware looks sharp.
Leather always adds some good look to a key chain, and the mechanical design of a digital tool makes for a great theme.
If you'd like to own one, visit SDI Gifts.
Photo credits to Smart Decisions International