Make minecraft characters and create a story with them. They can use boxes or other various items around the hall to give show/story the authentic feel.
Card, printer, glue
Print off characters from website http://pixelpapercraft.com
Follow instructions to make allowing for glue drying time. Once characters are complete and ready. Give Beavers 10 minutes to use their imagination for the story and some rehearsal time. Then put on show/story.