The beauty of this activity is that it's fun and takes very little preparation time.
1. Give each child a piece of paper (I had the librarian cut the sheets in half to save on waste) and pen/pencil, unless they are too young to know how to write. In that case, help the teacher that has children too little to write.
2. Have each child write down their favorite primary song and their name on that paper. Tell them to sit reverently and wait once they are done.
3. After a few minutes, get everyone's attention - fold your arms, etc., until the room is quiet. Then, tell each child to crumple their paper into a ball.
4. Tell them to throw their crumpled balls to the front of the room:
We had our first snow storm of the week a few days ago, but when I did this activity, it had not snowed yet, so I said something about how it usually snows before Halloween, but it hadn't snowed yet, so we were going to make our own snowstorm. On the count of three, everyone throw your snowball to the front of the room. "1, 2, 3!"
I then explained that I was going to pick up a snowball at random, read the song and who wrote it down, and that we would then sing the song. That's it! I had a back-up plan to add fun ways to sing the song if the children lost interest, but they loved it.
Junior primary was a little bit rowdy, but this activity was surprisingly easy, and surprisingly fun. The time went quickly. Even my less interested senior boys got into it, because they wanted me to pick their snowball.
Just make sure your pianist is prepared to play anything!!