As I was browsing PH I saw the Pen Type-A, which is my second favorite pen ever, and that caused me to want to hunt my first favorite pen ever. I use a ton of pens (kind of an addict), but the look and weight of this one make the experience of sketching feel so crazily rad.
Also, it's made of solid brass, so it picks up an absolutely beautiful patina over time.
The Closet by Aww, Rats!