Monday's ordinary thing is the mud puddle. We are replete with puddles here in a very floody Washington this winter. How inviting to the feet of children everywhere!
As far as puddles go, the deeper the better. Remember the days of yellow galoshes? Did you have a pair? To me, the sole purpose of yellow galoshes was to walk through mud puddles. I was six or seven when, as e.e. cummings says so delightfully, "the world was puddle wonderful."
A bit older, and I thought it was very clever to name the puddles. I gave them names like "Lake Erie," and "The Sea of Sixty-Third Street."
What about your puddle world? Write about it.