There are a lot of wacky gadgets out there that don't necessarily do anything useful, such as USB foam missile launchers. But you can get crazy and still be useful. Here's one of my favorites, from Monoprice, a deep-discount tech gear site: The 3-in-1 LED Light, Hand Warmer and Battery Backup for iPhone, iPod, and other USB Mobile Devices (2500mAh). First, it has a 2500-mAh battery and a USB port to charge devices. It also has a four-lamp LED flashlight with two brightness levels and a flashing mode. Finally, the metal plate on top is a hand warmer that can operate in two temperature ranges, either 104-113°F or 122-131°F. All for just $22.02.
This sort of thing just has to come in handy now and then.
-- Larry Seltzer