Yesterday I bought a big bone at the butchers because I didn't have any left to make knife bolsters.
I like using bone for bolsters because it looks good, is maintenance free, and is easy to work.
The bone was a piece of cow's leg. Ideal for my purposes because the actual bone is very thick.
My wife was out and I used the opportunity to do some more forging while the bone was cooking in boiling water to remove fat, gristle, meat scraps and marrow. After an hour or so I got back into the house to get more coffee, and my first thought was: 'my wife is going to kill me'. The entire lower floor of the house stank. As it turns out, boiling bones with stuff attached to them can stink really bad.
I opened the door and windows, turned the exhaust to full power and hoped that my wife would stay out for a couple of hours more. I got lucky, because by the time she came home, the stench had gotten down to a very faint lingering smell.
So if you are thinking of doing the same in order to clean bones, take care to do it smartly. Either do it when your wife is out, or do it outside. Don't risk the mrs getting home in the smell of boiling bones because she will be mightily unpleased.