Games like Rock Band and Guitar Hero are great, but they end up cluttering your house up with any number of cheap, plastic instruments. You're an adult! You can't have toys all over the place.
This retractable Rock Band/Guitar Hero controller from NEXiLUX looks perfect. Able to fold down to an absolute tiny size for easy storage/hiding, it provides you with all the buttons you need to shred, video game style. And it works with the Wii, PlayStation 2 and PlayStation 3, making it extra-versatile. No word on price or release date.