This is how I do the skulls too. We have big ass ant hills in the woods here in Sweden. So I wrap them in chicken wire and put them by a ant hill. And they clean all the nooks and crannies right out. 👍🏻
My cat got a squirrel and I've let nature clean it. How do I preserve the bones after nature's done doin its Thang? Anything? Or is it good to go? Im new to this. My plan is making a wind chime with it with some rusty horse shoes.
I like to just do a quick wipe down with 90% strength rubbing alcohol just to sterilize if I want a bone to maintain its color. Soak it down with a mix of alcohol and peroxide and wrap it in plastic wrap for a day or two if you want a lighter color.