The tail...

Logan loves to wear a tail. In the beginning he would use one of his long stuffed snakes. He just stuffs part of it into his pants.

He eats in it.

He sleeps in it.

Then he switched to using a belt for a tail. Nowadays, he goes back and forth. When we forget his tail he sometimes straps himself into the umbrella stroller and then stands up with the stroller strapped to his back.

Logan claims that at 5 he is going to turn into an animal. I'm betting that might actually be likely.