Really.  See: Yep.  I finish those nasty sharp cut edges on my spring steel corset bones with nail polish.  I find that it’s a lot easier to use then the ‘official’ boning dip (for one thing, it dries in a few minutes, not overnight!), and it is cheaper, and easier to source.  It also works better – rounding the edges without leaving big bumpy drips. Besides, I love knowing that there is a little secret bit of pink sparkly hiding in my corsets 😀 To soften the sharp cut edges, I give them three or four coats of varnish.  Then, for a final bit of protection, I dip them in glue.  Works perfectly, even when you dryclean your corset. Tomorrow I’ll show you the corset these bones were used in.