It's going to be a tough sell since you can get a 1GB flash drive for under $10 here http://www.supermediastore.com/apacer-handy-steno-ah320-1gb-usb20-usb-flash-drive.html
Guys this is penturners! Buy the drive for ten and make some really cool kit to go around it! It cant be any harder than some of the pen kits people have made from everything from cactus to an old micrometer. Just use a little imagination.[8D]
Not only is it costly, but due to the shape of some computer USB ports and the round shape of the blanks you may have to purchase an extension/adapter so it will fit in some computers. I like the idea of buying one at the discount store and come up with your own wooden cover for it.