Don't know if they're based on the 3d scans mentioned in the article but you can find printable STL files for skull whistles on all the major 3d model sites. They're not the easiest whistles to use but once you get the hang of it, the scream really is eerie, though not very loud.

The debate over their use reminds me a bit of the Buck Rogers tv show where sometimes Buck was amused by the misperceptions of a contemporary historian on the use of certain 20th century artifacts, including the belief that a hanging Tiffany lamp was some kind of electric salad bowl.