All of my kids have loved playing with "Little People". Emma likes to put the Little People in the Little People bus, and then open the back door and dump them out - just to do it again.
She took a Little People up to nap with her. 20 minutes later, I hear her talking and laughing with her Little People - when she should be sleeping. So, of course, I have to be the "mean mommy" and take the Little People away.