This daft little game started one bedtime, when pyjamas were going on, and when my little grand daughter and I had been playing This little piggy went to market. Somehow we started playing her toes like little piano keys. We both sang 'piggy piggy piggy', while I tapped out the tune on her toes.
Play any tune you like ~ we played the tune of Twinkle twinkle little star ~ and sang:
Piggy piggy piggy piggy piggy piggy pig, Piggy piggy piggy piggy piggy piggy pig… (etc)