Eggman fans only need apply!
For this fun, black & white cap hat. It has an old-fashion looking design with Eggman in a simple ring shape with curly designs at the bottom, an 'old west' type looking font for his name & sort of 'wood sign' type bar for the catch-phrase for this hat which is (appropriatly for him) "The World is Mine!"
There's no sign of Sonic here, which is good, because each character has fans and should be able to be the star of their own merchandise. With the grand-standing Eggman art, fun phrase & bold name placement, this is likely a cap even the Dr. would approve of. But where can you buy it? This is a fall 2016 item.