Corey Menscher, a father-to-be, has constructed a device called the Kickbee that notifies him when his unborn baby kicks inside the womb.
The Kickbee is a stretchable band with attached sensors, and is worn by a pregnant mother over her stomach. A microcontroller in the band then captures the movement of the baby kicking, and transmits the signals wirelessly to an application on a nearby computer. The computer in turn broadcasts short messages of “I kicked Mommy!” on Twitter, which can be shared with family and friends.
The device is not yet available for purchase, but you can follow the Kickbee on Twitter.