Sounds weird? Kind off, but it could be good idea if you want to make sure nobody steals your usb drive as I am sure after disguising it as an eraser no one will "abduct" it. As one can expect, safety comes at a price. But over here you don't need to spend big bucks, follow these "simple" steps and you'll do just fine.

Coolest-Gadgets reports, "to build the drive you need to chop one end of the eraser off and on a second eraser you cut a shorter end off to act as the cap. Once done, you dismantle your flash drive down to it’s USB connector and the circuit board inside. Next, use a rotary tool to carve out the insides of the eraser and then squeeze in the flash drive. You will be good to go!"

[Via Coolest-Gadgets, Instructables]