I don't know.

We live in a 1970's split level house. So, the living room is on the top floor, and there is a rail around half of it. As my son finds things he likes, he lines them up on that rail. Two additions today were a little Buddha figurine and a monkey soap dish. I don't know why, but it sort of just seemed odd to see the two things right next to each other. However, I know it made perfect sense to him.

(Until today, it has mostly been trains and trucks that have made it to the rail.)