Since O(5) LOVES the polishing works at school, I decided to set a few of them up at home for her and E(2) to do. E LOVES this work! She polished the mirror at least 15 times in a row when I first introduced the work to her!
First, spray the mirror with water.
Then, dry it with a little cloth. (we used tiny flannel wipes leftover from the girls' diaper days)
She also really loves to spray herself in the face with the water!