Mauser, sometimes you can complain about free. I’ll give you a free air conditioner. It doesn’t work and leaks Freon, but you can’t complain about free right?

If your buddy is using bleach, he’s “freely” ruining your treasured trophies. Request that he not use bleach on yours. I’m not familiar enough to know how long the process takes for the bleach to chalk the bone, or if there is anything that can be done to lesson or minimize it.
Mike,
Good luck getting after them, food is the key these days.