A friend sent me a link to what is easily one of the coolest game ideas I’ve seen in a long time.  You can always count on the IGF winners to show you something new and fun.  Last year’s IGF Grand Prize Winner was a little game called Crayon Physics.  All the graphics are rendered in a very hand-drawn crayon style, and the game play is driven entirely by drawing similar crayon images.  It’s a puzzle game where you must move a little red ball to catch a star, but the only tools you have are those which you’ve drawn.  Check it out.