‘Darth Tut’ Shirt from Teefury
Darth Vader was a cyborg Sith Lord who fathered Luke Skywalker, turned to the Dark Side and commanded the Galactic Empire with an armor-plated fist. Tutankhamun was a possibly murdered child-king of Egypt who was worshipped like a god, but notable mainly for not having his grave robbed. The two autocratic leaders may have their biographical differences, but they both had some pretty sick masks that looks awesome when melded together.
As always with Teefury shirts, it is available today only.