Design of the Week--Captain Future Logo Redux

Each week, we post a limited-edition design, to be sold for exactly 7 days, then replaced with another!
In rare cases, like this, we keep it another week because sales are so good!
It's the logo of the hero of Big Bang Theory's Sheldon and Leonard, hanging in a place or honor by the front door of their apartment...

He's the Wizard of Science!
He's been the subject of pulp magazines, comic books, even an anime series!
He's Captain Future, and now you can wear him on shirts, bags, cellphone & e-reader cases, and other kool stuff!