Cash, cash, cash for your bones! Too many bones? Not enough cash? Call Cash Bone! Ribs, skulls, spines, even certain tiny ear bones. The leg bone's connected to the Cash Bone!
A femur? That depends, is it your femur? Or is it a femur you acquired?
In the former, you may be eligible for a lifetime of less-than-poverty wages, for free from a thing called "dys ahh bill eee tee"...
If it's the latter, you can get an all expenses paid trip to the local penetentary! Where you will be given free food, clothing and shelter, possibly for years!
Either way, you may not have to work, ever again... Or maybe you just won't be able to! Who knows!
If the bone fairy gave you money for your bones, it's not more than what the tooth fairy gives for teeth otherwise we'd have a totally different tradition going on.
In Quebec, we had a legend that is thought to be related to "The Bone setter". It's a guy that would crack back your bones or something, and their patients would scream, so people were rightfully scared.
Parents would basically say to their child that if they misbehave, they would call the bone setter.