Adding animal stickers to music is an idea to reinforce the speed of a song (ex. animals from these photos). Also, stickers of quiet or powerful animals (i.e. panda or lion) reinforce piano and forte dynamics.
Boomwhacker Lightsaber Duel - Star Wars Fun for the Musically Inclined
Kodaly Rhythm Symbols, a system of music education for children that includes singing, ear training, solfeggio, rhythmic movement, and improvisation -- developed by Hungarian composer, Zoltan Kodaly, to achieve the goal of music literacy.