I put out some dark brown playdough (for mud) and the animals from the book; a pig, a duck and a cow. R loved putting them into the playdough. We talked about the animals 'getting dirty' like in the story.
After playing with the animals in the playdough, I suggested to R that we give them a bath. He was all for this, because he absolutely loves water play. I set out a tub of water with bubbles in it. I also gave him a nail brush and a pig, cow and duck.
He scrubbed the animals clean with the nail brush.
We also did a craft for each of the animals in the book. R collaged splotches onto the cow.
He fingerpainted pink paint onto a pig.
Finally, he collaged feathers onto a duck after decorating it with a yellow Do-A-Dot marker.