Thanks Art I'll give it a try this evening when I get home!

Sharon re the musical frog, it is a hollow piece of wood carved to look like a frog with its mouth open, It has a zig-zag wooden ridge running down the centre of its back.

It comes with a beater, You can either play it as a wood block, or sit it in the palm of your hand and run the beater up and down the ridge, This makes a sound like a frog croaking. (you can change the note by blocking the sides of the mouth with your fingers)