Ping pong balls in shallow water (5)

My 3 year old grandson was sure they were turtle eggs and he put one in his sand pail and covered it with sand and all day he sat with it telling everyone he had a turtle egg.  I thought turtle egg were more oblong with one end slightly rounder then the other.  What do I know.  Sounds like I have a young naturalist on my hands.

Thank you for the information.  Cindy