If you'd like to add a little sci-fi flair to your presentations, pick up the Phaser Mouse, a gun-shaped tool that lets you mouse around on screen and click through slides from a distance. The Phaser comes with a large RF receiver that plugs into a USB port, letting you work up to 50 feet away.

The top of the Phaser holds a rollerball, with mouse buttons on either side; the gun's trigger also works the left mouse button. Press the center laser button to shoot a laser beam out of the Phaser's mouth.