Reindeer Butting Game

Divide the group into teams.
Each team is given an orange and lines up in a relay fashion.
On signal, the first boy in each team puts the orange on the floor and
butts it with his head to a turning line and back.
He may not touch the orange with his arms or hands, only with his head.
The next team member repeats the action, and so on until all have raced.
The first team finished wins.