how to encourage children to sing louder in any setting (classroom, playgroup, family, etc). the bigger ben's bubblegum gets, the louder they sing! She has TONS of great ideas for Primary Singing Time.
For our princess birthday party-- made with a foam core board I cut out, wrapped with pink crepe paper, then hot glued with million white cupcake liners. I might try it with a white background for a baptism celebration.
Balloon Popping meter: as the children sing well, a leader pulls on the ribbon from behind. If the kids have mastered a song, the balloon makes it to the top, where it is popped. If all the songs are mastered, the kids get tootsie "pops.
Cheryl im gonna need you to make this for my boys! Awesome LDS goal board for boys. I'd change it a bit for girls by making a plaque for the temple. I'd also add Faith in God and Duty to God (boys), and Faith in God and YW Recognition (girls).