Haha, you guys. : D
Well, you might be able to find similar pendants if you poke around the internet, since it's just a stylized version of the looped cross design. But the specific one I have is from a Czech reenactment company called Wulflund, their site is easy to find with some searching.
It's made out of steel, so it's a little heavier than what I usually wear, but mannn I love it. : D A wood one would probably be more accurate to comic, though... If I had any skill for woodworking, I'd have gone that route. ^^