I decided to try my hand at converting a poorly built spare USB key I had into a LEGO USB Key.
Everything went fairly smoothly, the key wasn't too hard to open up, all it had was a flimsy plastic shell. It took a while to dremel out the LEGO brick because the chip would barely fit inside, had to be careful not to break the walls while dremeling them out.
You can view some pictures of the results below!
The disassembled USB key and LEGO pieces.
Starting to dremel out the insides of the LEGO block.
Hollowed out most of the insides.
Had to really dremel out the inner walls of the block for the chip to fit inside.
The finished version with the chip secured inside the block using hot glue, now attached to my USB keyring.