Not being a fan of the size or positioning of Fender thumb rest or tug bar, especially on a Mustang, I knocked up a quick, reversible mod, thumb rest. I was so pleased with it, I even stained and sealed it.
I can see the potential allure of that, but the button legs are just stupid. Unfortunately, the headstock shaping looks like an afterthought and looks like a lazy effort. Definitely potential for a little customising to make it aesthetically better.