I love Moon Dough - I am getting rid of all the play dough in the house. Play dough sticks into all parts and is hard to clean up - moon dough is a snap to clean up - sweep it into a plastic zip lock & vacuum anything left over. My Son, LOVES this stuff, can play with it forever, building the 'wrecking'. (my son is 3-4yr old) The Farm set I like - he LOVES the barn and the animals to make. The animals are a little hard for him to push into the mold and they don't always pop out when you turn the handle - most of the time I make the animals for him, he can make the other moldable things (hay bale, fence) & I leave him to 'wreck' them and play.