If the children in your group are large enough, consider organizing a concert. Let them decide for themselves where the stage will be set up and what kind of curtain to make, help everyone come up with a number. Some children love a solo performance - to sing a song, dance, read a riddle or some funny story. Other group performances include juggling balls as a team, performing something funny, or singing together. You can take part in this concert as an entertainer, announcing each number and calling on the audience to applaud the performers in a friendly manner.