Bible Belt Balabusta shares a terrific idea to create a meaningful object from your kid's toys:
"Making a ritual object out of repurposed materials with your kid is fun and Jewish (two words we like to link as often as possible), useful and meaningful. In the case of a mezuzah (pun intended), we can touch the container every time we enter a room, which creates a physical connection to the Sh’ma prayer inside and the parent-child crafted case outside. Of course, we make sure at least one case is mounted low enough for kids to reach, too."
Access instructions HERE