We have been doing a lot of this around our house lately (consequently I have been doing a lot of laundry too).
The girls have been playing out back by their playhouse with water, dirt and lettuce. I grew a bunch of lettuce in my garden and have no use for it at all so I have been giving it to the girls to play cooking with. They love it and we have lettuce strewn from here to breakfast.
We had a good rainstorm a few weeks go and the girls were ecstatic to put on their rainboots and get splashing.
They started in our puddle but soon moved next door to the big puddle by Bob's house. It was a muddier one.
First they splashed, then they sat in just the mud and dug.
The miss Brailie ventured partly into the water
And then I finally just said, "oh go ahead and sit in it" and they didn't hesitate.
It started like this but let me just say a full bath was required when it was all done.