Robin, I doubt you will find a capo with shorter legs than a standard Ron Ewing. That is more or less the model these days.

And even though I was the one who proposed the hacksaw idea, I think Skip's suggestion is the less violent option. If you put a piece of hard rubber or soft wood or something, roughly the width of the fretboard, underneath the capo, you can get the same result without destroying the capo.  I would try that.  Some experimentation should reveal very quickly whether the legs of the capo will still have enough force to hold it down.

I'm surprised we've not had: Water the fretboard and rub in some compost to see if it will grow a little

I was actually asked the question by a player who has a Sobel dulcimer - and, although the hacksaw idea had already come to mind I did wonder if one the current commercial ones may fit?

Cut a dowel or wood pencil just short of the fretboard width and tape it between the legs of a standard capo. Run the tape parallel and between the strings.

LOL~y'all are awesome!  We have a plenty of builders though...  Maybe it's a request someone could fill?

1 regular capo + 1 hacksaw = 1 shallow legged capo

That's all I got.

No, I don't know of any - but the old 'chopstick and strong rubber band' technique should work!

Does anyone know of a capo that would fit a low fretboard: Height 10mm, width 32mm

Thanks,

Robin