Glowing lines on the shirt change color to show how strong the local wi-fi signal is. details

Relive the early days of photography, except that you can use color film too, which should be pretty cool. Uses 35mm film. Some assembly required, but that's part of the fun. details

This waterproof, fade-resistant skin makes your laptop look like an old school vinyl turntable. A wheel of steel, as it were. details

For the gangsta geek. Rhodium plating, and just crusty with cubic zirconia. details

The pendant on my necklace had an image, but it won't come up. details

Like Post-Its, but with logical positivists. "Of what we cannot note, we must remain silent." The blue ones have excellent checkboxes for Tautology, Meaningless, and Schweigen. Schweigen! details

Wrapping paper for the geek in your life: equations, binary, Christmasbots, and more. details

Twelve inches in diameter, requires just one AA battery. And pixilated! details

Put a coin on it, and brown or white kitty (your choice) pops out of the brown cardboard box with Japanese writing on it and grabs it, then meows. Everybody wins. details

So futuristic, so useful: this cube projects a glowing red keyboard onto a flat surface, and then it works as a real keyboard. See the video. The marketing plays up the iPad/iPhone angle, but it works with Android devices, Windows, Mac OS, and Blackberry tablets. details

You control the speed of the scanning eyes, whether they're red or blue, and whether it makes a creepy sound. (See excellent video.) details

Plug it into a USB port, and it does absolutely nothing. Then again, it takes absolutely no care, and comes in a box very similar to that of the original 1970s Pet Rock. Watch the video of the USB Pet Rock in action. details

Set of 3 almost 4" wide. If you charge them up and drop them on someone who used to play a lot of Space Invaders while they're trying to sleep, they'll find it very memorable. details

Standard, poker-sized cards with classic Atari images on each card. details

A cool, old-fashioned, working lighter—that holds 8 GB of data via its USB port. details