Technically, since this is above ground, I probably shouldn’t call it a Man Cave. This is Prince Charming’s Workshop. All his luthier paraphernalia and woodworking tools will be set up here. And the myriad clamps, presses, vices, rasps, bits and bobs will have a perfect home.
Prince Charming currently has a guitar in the works. All that’s left to do are the gazillion coats of lacquer to make it shiny.
I think there are dreams of having a planer in here, as well as some aparatus for steaming/bending wood.