Arrange 2 lines of chairs (or yoga mats) in centre of room. Dance around room performing yoga poses while music plays. When music stops, race to sit on chair (or yoga mat). In first round there is space for everybody, but then remove one chair (or yoga mat) after each round. The child who doesn't find somewhere to sit is eliminated. Give a little prize to everyone for taking part (not just winner).
Scatter chairs around room randomly, or in a circle.
Yoga Lesson Planner
Pilates Lesson Planner