If you fancy something a little different than the beer filled USB flash drive to store all your files on, then check out this Mahjong USB Flash Drive.
This Mahjong USB Flash drive is hand made and will set you back around $400, there are a couple of models available, with 8GB and 16GB of storage, and the price includes having them engraved with whatever you want. You can find out more information at the link below.
Product Page via Everything USB and Slippery Brick