Airow Gun makes paintball and pellet guns that are mounted on compound or recurve bows. Not only does it make things more challenging, it also eliminates the need for CO2 canisters. Video here.

A concise explanation of the history, technology and the consequences of the Manhattan Project, which led to one of humanity’s worst accomplishments but was also a spark of fruitful innovation.

(Spoilers) This featurette for the upcoming action flick G.I. Joe: Retaliation focuses on the Cobra ninja Storm Shadow. Featuring interviews with actor Byung-hun Lee and director Jon M. Chu.

A sturdy, lightweight pack, covered with a 3D texture that reminds us of Tetris. Made from polyester/spandex, with nylon zippers. Measures 18″ x 14″ x 8″, so it holds most 17″ laptops.

The updated version of Muji’s minimalist CD player. The Bluetooth speaker can be turned on or off by tugging at its power cord. It also has a remote control and an FM radio. Video here.

The T-frame display makes any t-shirt special, whether it’s one autographed by your favorite athlete or just the one you wore yesterday. Designed by Caleb Ferris & Prakhar Mehrotra.

Over a decade ago, marine biologist Roger Hanlon stumbled onto an octopus as it transformed to match its surroundings, leading him to study how cephalopods morph in color, shape and texture.

It’s been a bad month for Detroit Pistons guard Brandon Knight. First Chris Paul owns him at the All-Stars, then DeAndre Jordan temporarily wipes him from his existence. And now this.

A can of spray-on non-flammable liquid that temporarily renders paper translucent, letting you see what’s underneath. The effect lasts up to 30 seconds and leaves no mark. Video demo here.

Another example of children giving back some of their parents’ youth by way of a special time machine: their old vehicles. This one’s about Joe and Bev Smith and their 1948 Plymouth.

Similar to the Maker’s Apron, the Gentleman’s Apron by TRVR is very practical, with a utilitarian yet pleasant design. It’s made of waxed canvas and has leather straps, loops and pockets.

This unfortunate mountain climber let go of his axes when he was caught off guard by a falling chunk of ice. Without a harness, he was in for what is probably the scariest 45 seconds of his life.

Wildlife photographer John Downer was kind enough to share this cute and hilarious footage from the BBC/Discover program Penguins – Spy in the Huddle. The snowball cam is pretty classic too.

More of our fantasies and insecurities brought to light. Have you ever wondered if ZeFrank is just trying to prove how sensitive and unique he is, but only because none of the examples apply to you?

The manliest shaving brush, cast to look like the .44 caliber revolver cylinder. Choose from silver, black, gold or polished bronze, in matte or shiny finishes. Of course, you must now shave with one of these.

For kids and kids at heart, Klutz’ Book of Impossible Objects offers 25 fun and mind-bending illusions and tricks. Our favorite – the stare-o-saurus, a dinosaur whose eyes remain fixed on yours.

Prom is coming to Westeros Valley High in the first episode of this fan made web series. School of Thrones casts the clans from Game of Thrones as high school cliques. GREYJOY!

A control center for your home’s locks, lights, shades, security system, thermostats and more using a companion smartphone or tablet app. Compatible with Z-Wave devices. Demo video here.

The most substantial wooden watch we’ve seen, Mica’s Deck Watch is crafted from pine sealed inside and out, making it splash-resistant and long wearing. We also dig the hefty stainless buckle.

Keep plenty of drinks chilled with the Brainfreeze Glass Skull Ice Bucket. Its ample cranium hold up to 54 ounces of ice, though we also like the idea of eating raspberry sorbet out of it.

One-man-band Anders Flanderz knocks out an awesome rendition of Europe’s cheesetastic classic The Final Countdown, on accordion, Casio, xylophone, body drums… and bicycle horn.

Nigel Ackland demonstrates some of the finer points of using his BeBionic3 robot hand to do everything from tying his shoelaces to dealing cards – and freaking us out with his spinning wrist.

re:3D’s Gigabot 3D printer has a build volume of 24 cu.in., significantly larger than other prosumer and desktop 3D printers, so you can print larger items or print multiple small ones at once.