Dead things

Over the years I've done a few projects involving skulls. They seem to be popular so as of late I've been messing around with a few more skull related projects. I'd like to take things a step further and start casting some real skulls. Tiny ones, birds, mice, rats, etc. However I'm not going to go on a small animal killing spree. So I ask for your help, please if you have any small skulls or bones that may be suitable for casting, contact me. All the necessary contact info is on my website. Also any recommendations for removing flesh, fur, and feathers would be greatly appreciated.