*NOTCOT
Lancome has Le Magnetique - Star Design Nail Lacquer - literally you take the magnet on the bottom of the bottle to your nails before they dry, and *poof* science class meets manicure.
*technabob
This may look a lot like a Nixie tube clock, but look closely and you'll see that it's actually made using modern LED technology. That means it'll never burn out like Nixies can, and it still looks pretty darned cool.