I've done a skull from a freeze dried specimen, but it's very difficult to do a skeleton from freeze dried unless you have dermestid beetles. I've done an alligator out of a freeze dried mount too. Very time consuming. I need a large frozen specimen to work from. I've always wanted to do a full skeleton mount of a niger with the armor in place. I've done over 400 different species of animals to date. I have over 500 skulls and skeletons in my collection, and sell some of them ocasionally if I get a better specimen. You'd be suprised at how many collectors there are out there.