Here's a great book to do some leaping to:
Jump! is a fun rhyming book with predictable text and lots of opportunities for movement. A bug is sleeping on a jug until it sees a frog and it JUMPS! Then the frog is sleeping in a bog until it sees a cat and it JUMPS! This continues as the animals that jump get progressively bigger.
You can find a great list of leaping activities at Nurture Store including our Foot Book Movement Activity, a fun way to celebrate leap day AND Dr. Suess week at the same time!