Over on Boing Boing Gadgets, our Rob's found a maker who miniaturizes USB devices and stuffs them in legos:
USB hub in a Duplo brick
Miniaturization at work: "Stuffing things inside LEGO bricks" is the new "stuffing things inside of dead retro computers."
As a hand-made item at 123smile's Etsy store, it's not cheap: $50. 123Smile also offers other Lego hacks at similarly unnerving prices--check out these tiny 8GB thumbdrives.