Lucy the Elephant
From Muppet Wiki
Lucy the Elephant is a trained pachyderm performer who appeared in Muppet Treasure Island, bearing Benjamina Gunn in an ornate carriage for Miss Piggy's grand entrance. Shooting had to be carefully choreographed so the elephant wouldn't lean over or go backwards. The trainer personally led Lucy, while surrounded by a parade of puppeteers on both ends. However, the scene was framed to suggest that Lucy was marching entirely on her own.
