This will keep you busy for hours days weeks years!

The magic ruler could be transformed into many shapes: More than 300 different shapes, 26 English letters, 10 Arabic numbers. Can be combined to make more difficult shapes (like huge towers).

More info: Foldable Magic Ruler Magic Snake Puzzle

- Movies with great fight scenes

Wow! Easily coolest ruler out there. Can’t stop measuring! One ruler to rule them all!

Each ruler is six inches of fun (outta the gutter, you), and each one features a different Scanimation (an illusion style designed by the genius: Rufus Butler Seder). Just tilt the ruler back and forth to see the motion! You can choose from blinking eyes, piano playing hands, crawling ants, and running horses (a nod to the tale that motion pictures were created to really see if there was a moment when a horse had all four legs off the ground). These rulers are a great way to geek out your kids school supplies or spruce up your boring office accessories. Optical Illusions Motion Rules have more motion and more magic for your measure.

More info : Optical Illusion Motion Rulers

- Are you Drunk?