A friend of mine’s husband to be has a badly mangled wedding finger and I’m trying to help her find wedding rings that will fit him (the base of his finger is fine but the knuckle is very large due to damage). The only problem is is that she’d like to get him a ring in either stainless, titanium, or tungsten and I’ve never seen hinged rings in any of those. Please help us find a hinged ring that will suit as a wedding band…Thanks! 
Not sure if this helps…overstock.com has men’s wedding bands in very large sizes up to size 15 I believe. You can also check out rings 2 fit.com. They have hinged rings. Good Luck!
You can the gucci website….for a titanium ring. Am sure they do custom made jewellery.