Since it's October, I want to share one of the first "pre-Program" activities I ever prepared to help identify what the children needed to work on for each song. You can read about it here.
After the Program
I'm a big fan of a low-prep-time Singing Time on the day of the Primary Program. Preparing for the program is stressful enough! Our chorister this Sunday played Spin the Chair for Singing Time, which is where you use tape to create a bunch of lines in the ground that look like pie wedges. Put the child in an office chair in the middle of the wedge, spin the chair, and wherever their feet point indicates which song they'll sing. The actual songs in the wedges are from the children's favorite selections. I love having a "children's choice" singing time and singing all of their favorite songs.
We had a special post-program Sunday today which I shared here. From the perspective of the chorister, you could just as easily re-write a song like the one we sang to the chorister and pianist for the children, or the Primary Presidency, or the teachers, etc! I once read about a Singing Time where the class made up more verses to the song about prophets, so instead of "Adam was a prophet," they sang, "President Monson was a prophet," etc.
My favorite go-to low-prep Singing Time was always "Snow Storm!"
This is so easy to prepare - the children write their favorite songs on a piece of paper, wad it up into a ball, and throw it to the front of the room. That's it! Well, I give a little more detail about how I do it here, but you get the picture. The kids LOVE this activity and I used to do it only once a year so it was special and fun.