This game is a great activity to discuss Biblical images of the Church as one body with many parts. Each of those parts needs to function together in order for the entire body to fulfill its purpose. In the same way, each part of a tree does a particular job which is important to the other parts and to the entire organism .
Explain that the campers will help you to create a living model of a tree, and ask them to name some parts of the tree. Start by building from the inside out by placing the heart wood at the center of the tree. Place a small camper sitting on the heartwood’s feet to represent the taproot that goes deep into the ground. Surrounding the heartwood with hands spread away from the tree place campers representing the lateral roots. Build out in concentric circles with the following actions and explanations for each layer of the tree.
As each layer is added, rehearse the entire tree as it exists at each stage. Finally, put on your best beetle antennae and try to attack the tree, and have the bark fend you off as the rest of the tree is going through all of its motions.
After the activity, debrief by asking what would happen to the tree if a particular part was missing. Then discuss the various gifts within the Church (Romans 12.4) and how the community of the Church is like a tree.