game theory Minecraft Skins MatPat (game theory) Minecraft Skin MatPat Logo by HammerBro101 on DeviantArt Matpat X Fnaf Dougs Briefcase Pin. The MatPat x FNAF Doug's Briefcase Pin is a collectible Youtooz pin inspired by MatPat. Designed for fans and collectors, this piece easily finds its place on a shelf, desk, or in a display case dedicated to pop culture. With its collector's design and immediately recognizable visual identity, this Youtooz product highlights MatPat's universe in a format designed for collecting and gifting. It will appeal to both Pop Culture enthusiasts and fans of beautiful licensed pieces. Why you'll love it Youtooz product designed for collecting, geek decor, or as a gift idea Main suggested universe: Pop Culture License collaboration detected: MatPat About the universe MatPat's universe has been built around a highly engaged fan community, driven by online content that has become cult classics.