Inspired by Wenchette, I invested in some shrink plastic sheets (think generic shrinky dinks), and went to town with it. The eagle shield is the logo for the Pan-Pacific Defense Corps from Pacific Rim (because my life pretty much revolves around that movie). Here's the back:

After I get done with all of the Pacific Rim pins I want to do, I was thinking about making a bunch of GoT House sigil pins. Whaddya think?