He-Man Power Of Grayskull Pose Masters Of The Universe T-Shirt Size:4XLT The mug was first seen

The mug was first seen in The Office pilot episode

This Back To The Future t-shirt features an image of Marty McFly wearing a radiation suit and taking to George McFly

The Dude and Walter scattered Donny's ashes

"See Emily Play" and the B-side "The Scarecrow"

and SkekSil was the Skeksis Chamberlain

He-Man Power Of Grayskull Pose Masters Of The Universe T-Shirt Size:4XLT The mug was first seenThis Masters Of The Universe t shirt features an image of He Man posing with his Power Sword. The shirt reads By The Power Of Grayskull. On the classic animated series He Man And The Masters Of The Universe, Prince Adam says "By the power of Grayskull, I have the power!" to initiate the magical transformation into He Man, channeling the immense strength and wisdom stored within Castle Grayskull. As He Man, he has the power to stop the evil Skeletor