How do you surface wash a soft musical toy

[Toppy]

I cannot believe at the age of 39 I am having to post this question !
I have just bought one of those soft musical pull toys (concertina style) second hand and it is slightly grubby and needs a surface sponge clean. I reckon I can plunge the lower half fully in soapy water and rinse but need to sponge wash the head which contains metal parts I assume. How do I do this and what cleaning product should I use ?

Miltons fluid on a cloth?
It's what I use at the nursery where I work

I would just bung it in the machine.

Hmm I am tempted to do that but I figured it might have one fo those metal hurdy gurdy things in it with little tiny metal forks that will rust and snap. I can't imagine anything other than metal being able to make that musical noise.