[EricH]

Darn, both Dave and Art beat me to this--VEX. We did this for a fundraiser--two Squarebots at a time playing soccer with multiple golf balls to score. Made a 4' by 8' table that we could break into two 4'x4' sections for transport, got a golfer's pool set for the balls and goals, and charged 2 bucks a round, with a quantity discount. No problems other than a couple of people trying to use the sideways motion of the sticks to turn when that couldn't do a ting, but the field wall held. We also had bumper switches to foil Battlebots wannabes from practicing.