What's a float?

How do you describe to a kid what a float is? Not a rootbeer float, but the kind they have in parades? It was my turn to pick the activity for family night. They had a preview exhibit of the floats for the days of 47 parade at the expo center. I thought that would be a fun activity. Brenner didn't want to go because he didn't think it would be very fun. But, once we got there, he loved it! He kept telling me thanks for picking such a fun activity. He liked the statue best. Joren like the Noah's ark float the best.
They both got balloon guns made from a clown and they both got their faces painted with dragons! It ended up being quite a bit of fun and they both fell asleep on the way home!