This is the $60 Celestial Fireworks LED Bracelet designed and sold by ThinkGeek. It features a portion of the Celestial Fireworks photo taken by the Hubble Space Telescope to celebrate 25 years of service and has 15 LEDs (USB rechargeable) behind the photo that twinkle when the bracelet is turned on. You know I twinkle when I'm turned on too. Just kidding, I hyperventilate and feel like I'm going to puke. I passed out twice watching videos in sex-ed. I was that kid.
Keep going for a couple more shots and a video.
Thanks to carey, who agrees more jewelry should have light effects.