Mungo is another character that seems to be a favorite with more than a few readers. Here are a few of my inspiration pics for him. Again, none of these are pictures of Mungo, as they're not gnomes, and the photos here are not endorsements by the photographers. Mungo looks exactly like you imagine him.
China, 2010, Matteo Vegetti. I love the sheer joy in this picture but it's the glasses, little hat and wispy facial hair that put this on the Mungo list.
Another grab for the goggles, helmet and facial hair.
Tibetan Nomad, photographer unknown. This is the photo that probably most influenced the character. This photo is captivating to me.
Mungo is the Dungeoneer's official gadgeteer and second under Ginny on the Trap Team. He walks a thin line between staggering genius and naive idiocy. But Mungo is a gnome with secrets. And the best way to keep a secret, as he'll cheerfully explain, is not to tell it. Is he insane? Is he playing some deeper game, fraught with subtlety? No one really knows, including Mungo. But if you need some little gizmo of whirling gears and potential explosiveness then he's got you covered.