This Flash game is more fun than it should: the goal is simple - all you need to do is use your magic pen and draw circles, rectangles and other shapes to push the red circle toward the flag.
But the principles of physics, darn them, are always trying to thwart what you're doing: Link [Flash game] - Thanks CheeseDuck!
1-11
http://www.freegamesnews.com/en/video/2008/MagicPenVideo-1-11.html
12-26
http://www.freegamesnews.com/en/video/2008/MagicPenVideo-12-26.html
My biggest gripes are that here's absolutely no clipping of shapes, while that's good from the point that everything is stable (one of CP's weaknesses is that overlapping shapes 'spaz out' and fly across the screen), it also means that you can't create a lever under the ball to catapult it across the screen.
Also, if you get three of four flags but loose the ball, you have to start from scratch. >.<
http://www.kloonigames.com/blog/games/crayon
Although speaking of crayon physics clones if you've got an iPhone you're willing to jailbreak, one must check out iPhysics, *amazing*... it's what the iPhone interface was made for ; -)
I guess I should have paid attention in geometry and physics at school. :(
But an awesome game nonetheless.
I've spent far far to much time on this.
Was a very fun game though :)