As a child I loved the Milton Bradley Operation game, the buzzer always scared me when it went off, but it was fun. The object of the Operation game is to remove a body part with out touching the tweezers to the metal sides that surround the object for removal. If you touch any metal sides you make his nose light up and a buzzer will sound and startle you. This year the Church I attend was having a new Harvest Festival or Halloween function this year called Trunk O Treat. Truck O Treat is where you play a game or activity out the trunk of your car. For my life size Operation game I would put candy in the pockets for the kids to pick out with salad tongs and put a Bible Armor of God theme for the pockets. I used a microcontroller to detect when the tongs come in contact with the metal sides and flash the red nose and make the buzzer sound.