Shoes, labels and markers
Give each camper a label and have them write their name on it, then get them to stick it to the bottom of one of their shoes. Than have them remove both their shoes, place each labelled shoe in a pile. Have a leader, counsellor works best, choose a shoe and 3 campers, one of which belongs to the shoe. Than have the other campers guess who the shoe belongs to. Game continues until each camper has been matched to their shoe. Works well as an ice-breaker, as well as a large group game.