Creative or Deprived?

Either the kids are extremely good at making due with what they have and can be entertained with little, or we are in desperate need of a playset.  All three of them were entertained with the lid-less cooler for a good half-hour, and then E became pre-occupied with the drain.  I have no idea what they were playing, but they seemed to be having a good time and no one got hurt, so maybe everyone needs a  lid-less cooler and yard drain.