Damn, didn't think of that. You're right Jeri - the problem is the arm and not the handle itself. I'm not sure about the extension thingy though - I've not found that string winders are happy about gripping a peg, so trying to juggle instrument, winder *and* extension might be a pain.

The peg-holder bit is just plastic, right? Saw the peg-holder bit in half, so there's a top half with the winder spindle attached, and a bottom half that'll fit onto a peg. Move them apart by however much you need, and epoxy a flat bit of metal (1mm aluminium should do fine) to both of them on one side making sure they're aligned properly. When it's set, epoxy three more plates on the other sides, and you're done. That assumes the winder has a parallelogram-shaped peg-holder - if it's the kind that's rectangular, then you've got a nice long flat section on each side, so there's no need to bother with sticking anything on the short sides.

If you want to be extra clever after that, you could use small self-tapping screws to ensure that you can't sheer the metal strips off by catching them the wrong way, but that's strictly optional.

Graham.