A Destructoid reader spotted this listing for an "Interactive Light and Smoke Stage Show" accessory kit for the videogame Rock Band. Presuming it's legit and not a hoax, the kit will be available in June for a hundred bucks.
This would only be cool—and I use "cool" liberally—if it were officially supported, with synchronization with the music in the game. That said, I've yet to pull out my Rock Band kit since our Fünde Razor charity event. I really liked the game, but just haven't been in the mood to rock solo since I've tasted the joy of full band play.