Here's something neat I found while searching for Doctor Fate memorabilia on ebay: The Helm of Nabu and Amulet of Anubis! Well, not the actual artifacts of fate but a great replica from Pit Viper Studios. According to their ebay listing, the helmet is made out of fiberglass and is ready to wear (up to size 9 hat).
Although the price of $275 (plus shipping) for the helm and amulet are a bit out of my price range for me at the moment in order to do a full review, I don't think it's astronomically priced for such a great item(s). Below is a picture of the Helm along with links to their ebay auction and main webpage.
Link to ebay auction for Dr. Fate Helm & Amulet of Anubis
Pit Viper Studios Home Page