My kids have a box that was made for our garden that is filled with clay . They played in it while I planted the other boxes and eventually claimed it for their own. A few weeks ago they were getting filthy playing in their box as I was tending to the garden - getting pretty dirty myself. My daughter noticed that how messy I was getting and asked, "Mom, can I take dirty pictures of you?"
If only Bill Cosby still had that show about that stuff kid's say.