When it comes to USB devices, there’s plenty of useless options out there, and a few funny ones too, like the i.Saw above. You’ll also find a USB-powered microwave, eye warmer, and more. Our team has rounded up five of the funniest USB devices for your viewing enjoyment after the break.

1. Heinz USB Microwave

Heinz’s Beanzawave is touted as the world’s smallest microwave, and it’s USB-powered to boot. Standing 7.4-inches tall, it uses “a combination of mobile phone radio frequencies to create the heat to cook both on the outside and within in under a minute.” Don’t have a computer around? Just pop in some batteries and you’re good to go.

2. USB Chainsaw

With the ability to cut through any wood, the i.Saw opens a whole new category of USB tools. According to the manufacturer, this device features plug’n’play functionality and “patent-pending technology allows for an unparalleled distribution of power.” You can pre-order it now for just $59.99.

3. Vacuum Cleaner

Sure, this USB vacuum can’t be used to clean up the overturned paper shredder bits, but it works great on spilled ground coffee. Though no technical specifications were provided, be sure to have your desktop or laptop plugged in before attempting to clean up any mess.

4. USB Eye Warmer

Not just any USB device, Thanko’s USB Eye Warmer will ensure that “those eyes of yours are nice and toasty, provided you’re near a computer, where they’ll need to plug in to draw power; of course, you won’t be able to use the computer you’re sitting at, as your eyes will be covered by this warmer.”

5. Calvin Klein Sunglasses

It’s not everyday that you see someone sporting a pair of Calvin Klein sunglasses, much less one that doubles as a USB drive. This model however, features “a 4GB USB flash drive, neatly concealed inside the right arm.” Available now, priced at a reasonable $199.

Honorable Mention – T600 Terminator USB Drive

File this under: geeky USB drives. Japanese gadget company Solid Alliance unveils a Terminator T-600 inspired USB drive that look quite creepy to be honest. No word yet on pricing or availability.

Honorable Mention – Smith & Wesson Revolver USB Drive

If nothing else, this 4GB USB drive can double as a mini weapon. The “‘S&W revolver shaped design’ is a lawsuit-free way of saying it’s designed to look like a Smith & Wesson revolver, complete with a metal housing.”