Opinions on purchasing bones?

Exactly what the title says. I want more bones around my house and in my garden. I love working with nature spirits and having them around is just nice.

However I live in an apartment in an urban area so finding them organically is just not happening.

I felt lead to purchase a doe skull from an antique shop once and she's been nice to have around but I want more. I'm not sure if I should make a habit of purchasing them. And if I did where I would get them from to know that they're ethically sourced and what not.

If you have any opinions or resources to share I'd love yo hear about it. ❤️🌈