King Conan #1 comic book from Marvel Comics Group
Maybe it is just me, but Thoth-Amon would need a seriously strong neck to hold up a hat like that.  Just look at those ridiculously long horns. 
There are bighorn sheep that are jealous of that headwear.

       

This is a scan of an old comic book. This item is not for sale. But you can find it on ebay.
Click below to go to ebay and search!