The other component often used in nail-polish-remover is Ethyl Acetate. 'Acetone-free' NPR contains a lot of it, or used to, in the days when I worked for a contract bottler. It isn't any better for the nails than Acetone, and catches the throat much the same way.

Nail polish/varnish/paint is not intended to come off easily.

My comment about expensive wood above: I meant the wood that the bridge is made of. It will probably be painted. I'd try hard to leave it alone! There will be a build-up of varnish in the corner between the bridge and belly, and the bridge will be too little to mask, and awkward to strip. And repaint.