Tattoos: they're cool and all, but they aren't light-up enough. Enter the implantable LED array. Now that skull & crossbones you've been considering can have blinking red eyes. You'll be the talk of the pirate party!
The LED arrays were developed by John Rogers from the University of Illinois at Urbana-Champaign, and they can twist and stretch by as much as 75%. Coated in thin silicon rubber, they're also waterproof and safe to implant under the skin. That means that you could, in theory, spell out your name in flashing lights under the skin of your back.
Count me in. I want a real sweet fire tattoo coming out from the top of my pants with red and yellow LED highlights that flicker when I dance seductively. "But GW, how's an LED supposed to know when you're dancing seductively?" I'M NEVER NOT, FOOL!
Thanks to Aaron and Stephanie, who are both holding out for implantable lasers. Hoho -- now you're talking!