Can confirm Kingston Data Traveller Micro Flash 16GB is an excellent choice. So small you hardly notice it as it blends in extremely well. It does not stick out so you can't damage it, with a huge capacity for music.
Try "memory bits" for Kingston data traveller 32gb micro usb stick. It's black as well so when plugged in you don't even notice it.. I think it cost me £11.95 and with free delivery... so far I have 73 CDs worth of music on it and its not even half full....Way to go JucyJ..