Froggy Learns to Swim by Jonathan London
I teach the song first, then read the book and sing the song on each page turn. We add the instruments later.
Mallets 1 - Glockenspiel
Mallets 2 - alto xylophone
Mallets 3 - bass xylophone
Percussion 1 - I usually use sleigh bells, but you could use anything that has a kind of ring, like tambourines.
You could also use boomwackers instead of xylophones.
I also add percussion to all the sound effects
Flop, flop, flop - hand drums
all the zip, zat, zut, (any getting dressed) on guiros
when Froggy winds around the crossbar - Flexatone