Try creating musical sequences which describe different sports. You can use vocal sounds, body percussion, school percussion, or whatever instruments you are teaching. Here are some ideas;
For example;
rapid sounds on a woodblock – running
rubbing your hand across the skin of a tambourine – swimming
vocal “shshshshshsh THUNK” – archery
Violin descending glissando followed by pizzicato – diving
Clarinet C C C C C CCCC…… G’…………………….C – high jump
Trumpet C C C G C C C G C C C G C C – hurdles
These can be written down using graphic or standard musical notation, and combined to create short compositions or maybe an introduction to a song.