There's a new weapon in the war against non-cool weapons. This is the Israeli Smart Arrow which embeds itself into a surface and begins transmitting video for up to seven hours.
The arrow sends video to a handheld device and can swivel around to grab shots through a door or window. The range is 300 meters and can transmit with a 60-degree field of view at 25 fps. The handheld device lasts for 3 hours on one charge.
Fire Rifle, Get Spy Pics [DefenseTech]