Materials:lab coat, safety glasses, white clothes, water balloon launcher, Twinkies, Big Mac, Vienna sausages
Directions:Have a kid dress up in a lab coat and say, "We are going to study the impact of fatty foods on the body." Have another kid come out dressed in white, wearing safety glasses. Then take out a Twinkie, go across the room and launch it from a water balloon launcher trying to hit the kid in the lab coat. Then use other foods like a Big Mac, Vienna sausages, etc. Be prepared for a mess.