need help making an easy tight sealed usb flashdrive case

i recently got a free 2gb flash drive but it has no case so its bare circuts and i need a way to give it a case to protect the circuts and reduce the chance of a nasty shock if you catch my drift any ideas would be great i have limited supplies and cash so ythe easier the better as long as it fits nicly in my pocket and will not give me any trouble plugging in and running

preferably somthing slim tyvm to all that help and i hope i havnt given to many stipulations