Walmart has the Little People Fisher-Price Choo-Choo Zoo Train for only $4.92! This has really Great Reviews. A choo-choo at the zoo? Did you know its musical, too? Press down on the train whistle to hear it blow, so the Train Conductor can signal the polar bear and gorilla to climb into the back. Then press down on the train bed to hear a sing-along song! Kids can roll the train along to hear fun animal sounds to help bring the play to life. So get on board with all the musical fun! Plus, choose in-store pickup to save on shipping.