This is a variation on musical chairs. Sit all of the children on either cushions or chairs in a circle. Go around the circle and tell them that they are a lion, a tiger or a bear. Make sure each child knows what they are.
When you shout 'Lions', all the lions must get up and move to another chair or cushion; when you shout 'Tigers', all the tigers must get up and move to another chair or cushion; and when you shout 'Bears', all the bears must get up and move to another cushion. When you shout 'Oh My!' everyone must move.
Every so often, you can take out a chair or a cushion and repeat until you have a winner. Obviously, towards the end you'll just have to shout 'Oh My!'. This game can also be played with music so the children have to dance in the middle of the circle until the music stops, then they must find a chair or cushion.