Split the group in two with one group on each side of the playing area along a line. Place a ball/beanbag (the bone) in the middle of the playing area. Each team must be numbered 1 to 12 (change this depending on group size). The instructor shouts a number and the two people with that number (on opposite teams) must try to get the bone before the other one. When one gets the bone, the other can try to tag them before they get back to their team line. The team scores points depending on how many times they manage to get the bone. You can mix it up by choosing different numbers on each team to go against each other.