This USB Missile Launcher allows you to control the direction and angle through a software interface connected through your USB port.

You can connect the missile launcher and have it sit up to three feet away from your computer, and with an on-screen control panel you can rotate it a full 360 degrees and adjust the angle up or down about 45 degrees. It has 3 foam missiles that can be launched up to 20 feet in rapid succession if need be. You can give yourself a tactical intraoffice advantage for a mere $39.99.

via FunUSB