A demonstration of Crayon Physics Deluxe:
I’m not big on games, but this one intrigued me: the goal is to get a ball to touch a star by drawing objects that obey the laws of physics. Draw something in the sky and it will fall; draw a wheel and it will roll; draw a pendulum and it will swing.
Here’s an imaginative solution for one of the simpler levels:
Very innovative. Available only for Windows now, I think.