Interesting idea for putting a play area on asphalt, concrete or hard soil in a temporary build. The tires and rocks can be removed, and the sand and rocks swept up. Interesting idea for day cares in urban settings without access to grass or soil.
create a sensory garden for your little ones to enjoy. So many options, especially when you start talking about herbs! (and yes, dandelions are on this list ~ who among us hasn't put them in water when the kiddos hand us a bouquet?