While it may look like a normal Rubik's Cube, it has lenticular iridescent tiles that change color when viewed from different angles.
This 1508 piece LEGO model of the G1 version of Optimus Prime, leader of the Autobots, actually transforms from a truck into a robotic life form.
An infuriating jigsaw puzzle made up of 300 transparent pieces that are almost all the same, clearly double-sided, and there's no reference photo.
A standard sized deck of playing cards, except each card has a varying level of woozy blurriness to up the difficulty level, plus they make all players begin to wonder if they've had one too many drinks on game ... Continue
This difficult, nightmarish jigsaw puzzle has no image, just 150 blank pieces that glow in the dark.
These unique 500 piece jigsaw puzzles are double-sided for an extra challenge with a classic photograph of a Frank Lloyd Wright building on one side and the floor plan blueprints for it on the other.
In the modern age, if you have trouble telling time on a simple analog clock, then you might never know the time again when you gaze upon this cool new Albert Clock that makes you solve mathematical equations just ... Continue
This all-white puzzle cube lets you twist and turn odd shapes and misaligned layers in all sorts of directions until, one day, you happen to solve it by returning it back to its cube form once again.
When or if ever completed, this gigantic 51,300 piece jigsaw puzzle of 27 wonders from around the world will take up nearly 30 feet of space... somewhere in your home, maybe.
Putting together a 1000 piece jigsaw puzzle is hard enough, but a 1000 piece jigsaw puzzle depicting a spectrum of hues with pieces that actually change color depending on how you look at them takes the difficulty to insane ... Continue
If you thought tossing ping pong balls into red party cups filled with beer wasn't difficult enough, then take your drinking game skills to the next level with this cool new Moving Beer Pong Robot.
This massive jigsaw puzzle contains 32,256 precision-cut pieces and measures in at 17 feet long by 6 feet wide, making it the world's largest jigsaw puzzle according to the Guinness Book of World Records.
