For older primary, kids pick a number and try to rearrange the letters to make a primary song and then sing it. - Or put numbers on envelopes with words on pieces of papers inside. They will arrange the words instead of the letters.
Fly swatter game- have 2 or 3 kids with fly swatters, tape names of songs up on walls. Say a line from one of the songs; kids run to hit the correct song with the swatter. Then sing the song. Would only work with Senior primary