Here's a lesson that uses marbleizing with shaving cream, as well as construction paper and acrylic paints. It's located in our Esther - Art Workshop forum.

In the lesson draft, each class made marbleized prayer box paper for the next class that was coming into the workshop the following week. However, you can FIRST glue the paper to the box and then smoosh the box itself into the marbleing shaving cream and then scrape it off, so that the kids were making their own paper for their own prayer boxes. That way each side of the box could have a different color pattern. (Tip: Leave the bottom unpainted so that the box can sit and dry without sticking to the table.)  Blow dry with fan for about ten minutes, then wrap in foil to travel home (and further dry at home).

Add:  Have the kids write some prayer subjects on marblized paper to put in their box to go home.

Lesson Summary:  Learn about how prayer ties to the story of Esther. Create prayer boxes out of marbleized paper. Make marbleized paper for the next class to use.