Creative!
How people come up with ideas like this, I'll never understand...
Anyways, the animation was on the better side of good, the sound was perfect (music where it should be, good voiceacting, ect ect), and it got funnier as it went on.
My only problem was it looked like the crayon went UP *something* instead of DOWN his pants... Come to think of it, that made it even funnier. Congrats.