Divide the group into 4 teams. Each team is given a bowl of food colouring (make sure each team has a different colour). Each member of a team is given a whole lot of Q-tips and a McDonalds straw (they work the best). Have one person, not on any team, wear a white shirt that can be divided into different point sections (draw squares on the shirt and put # of pts. in the square if the section is hit). Each team goes separately, they dip their Q-tips in the food colouring then blow the Q-tip out their straws at the human target. The team with the most points wins. If you want to mix it up the next time have styrofoam cups set up around the room and have teams try to knock down the other teams cup. Goggles are always helpful.