MIT Media Lab alumni at Supermechanical have built Twine, a rubber square that connects to Wifi and allows objects to “communicate” under certain conditions.

You can hook up the battery operated Twine to communicate through SMS, Twitter, e-mail and HTTP (web) requests.

The basic Twine comes with an internal temperature sensor and an internal accelerometer, with optional external sensors (magnetic switch for doors, a moisture sensor and a breakout board).