A pneumatic dart gun fires a special dart with a camera fitted into the tail section. When the dart lodges in the target, perhaps a wall or a tree, the camera activates and transmits a wide angle picture to a remote viewer or an eyeglass display such as Google Glass. The dart will continue to transmit for the duration of its battery or until shut off. The dart may be retrieved, recharged and reused.
Useful for monitoring hostage situations, drug stings, monitoring of wildlife or merely for keeping an eye on whatevers around the corner.-- whatrock, Feb 03 2016 That is not at all a bad idea, [what].-- MaxwellBuchanan, Feb 03 2016 sounds like a Mission Impossible one-off.-- FlyingToaster, Feb 03 2016 random, halfbakery