I like to give options for visuals, puppets, and props. Choices to purchase or make. Here's plenty of choices for your pumpkins for the rhyme I use for beat keeping, pitch matching solos and drumming "Five Little Jack-o'-Lanterns from my fall lesson plans (you can also find this in In All Kinds of Weather, Kids Make Music Book/CD.
After a few lessons of Five Little Jack-o'-Lanterns, here's a pumpkin passing game you never get tired of since the pumpkin drawing is so entertaining from the kids! Fun for them to choose instruments to accompany the passing game too!
Pumpkin Singing Game - https://www.youtube.com/watch?v=f9x_x8PToJ8&index=1&list=PLcGAMvU2YN-VW1J18R_XC-Szv9BA1uJF1
So much fun while we improve listening, timing and coordination, encourage creativity and develop beautiful singing!