One line and pass

Yesterday at school, the art teacher had an emergency and I was told with short notice that I was to keep my kids until the substitute came. Not sure where or how I thought of this, but it turned out cute.  I told all the kids to take out their favorite color and draw a line....any size or kind....then pass it to the right....we made it almost around the room and here are some pics of the end result.  They got creative as the papers started passing.