Decapod…
That thing can do some serious damage to your hands. 
it’d be waaay too heavy. but tungsten carbide weight rings would be epic, not to mention ding-proof
My wedding band is tungsten and carbon fiber with a very thin layer of lacquer over the carbon to protect it. I’m waiting for someone to do this in a yoyo and then take ALL my money.
i have a tungsten carbide ring too. no carbon fiber, but that’d be awesome. i was actually thinking some kind of wood would be cool.