The world is full of touchscreens these days, but most of them are on flat, smooth surfaces made of glass. Now researchers at Carnegie Mellon University have come up with a way to add touch controls to any object, no matter what shape or material it is. The system is called Electrick, and it uses a software algorithm to read the press of your finger by measuring changes in the flow of electricity across a conductive surface.

Researchers from the Future Interfaces Group showed off a few ideas for how this technology might be used. A thin conductive material could be molded onto your smartphone like a case. Then, certain grips would automatically launch the appropriate apps. Using conductive paint, you can spray touch controls onto a guitar, embedding effect pedals right onto the body. Add the same paint to a steering wheel and it can be used to control volume on your sound system or change the radio station.

The technology also has potential for use around the home. Researchers showed off prototypes of a wall that can dim the lights when you swipe it with your hand. They also built a desk that acts as an extension of your computer keyboard. Have ideas for improving the world by making ordinary objects touch sensitive? Add some ideas in the comments, but keep it clean.