Just about everyone had one and just about no one could do it.
Why the hell would someone make a childrens toy that is harder then Trigonometry ?
Evil bastards.

Online Etch a sketch USE ARROW KEYS
http://www.etchy.org/

makes a great a weapon though, bashed my brother with one when i was a kid, best use of one if you ask me

I had 2 of em.

They was the **** BITD.

I was pretty good wit em.