I needed to investigate something like this when I had a fad for late 60s/early 70's fan driven 'Woolworths' plastic reed organs.
I love the sound of the 'chord' buttons, but not so much the noise of the fan constantly whirring away.

Can't remember how far I got beyond searching the Argos catalogue for cheap inflatable beach/garden/camping bellows footpumps...

In the end I decided to record the individual notes and chords
and 'denoise' them
to make up multi-sample soundsets for midi keyboards.

These days I forget just how enthusiastic I used to be for cutting edge music technology back in the late 90's...

I've not touched melodica for about 10 years, but do remember the aggressive rasping tones
I could get from forced hard blowing.

But a bit of a chore having to drain all the spit out afterwards...