I don't have any gaming merch any more, as I find it tacky unless the entire room makes it work. Mine doesn't. Instead, my gaming space is set up as an altar of sorts; skulls (and skull accessories), incense and no small amount of wires sprawled across the place give it an air of a particular Black Sabbath song. I call my gaming space "Computershrine", which I like to draw upon while writing works for my fictional setting of Techropolis.