FluteofDoom, I think I love your nana! And your mom and dad!
I have my own collection of animal skeletons because I'm always getting handed random bones to ID, and I don't want to bother one of the state anthropologists if I don't have to. I have a few bones and skulls that were given to me by people who wanted to know what they were and DEFINITELY didn't want them back.
But to "flesh out" my collection, so to speak, I adopted a tip from a colleague in another state, which involves collecting various dead animals and burying them in my woods until the decomposition process is complete, then excavating the bones, washing and drying them - there are little stakes and flags all over my woods marking where things are "cooking."
Since most of my specimens are victims of motor vehicle accidents, I carry collection equipment in my car (gloves, shovel, garbage bags, duct tape). I will never forget the look on DH's face the first time I made a "score" when he was riding with me:
Luckily, he got over it and ten years later we're still together! And he not only doesn't bat an eye when I put the clean bones in the dishwasher, he's even used them to gross out a work buddy when they were unloading the clean dishes.
And he gave me a preserved rattlesnake for my office.