With bright light and 5 minutes burn time, this is required equipment for any cave-diver worth his salt.
Once little more than a standard place of higher education, now the University of Firdon sits at the heart of the magidustrial revolution soon to sweep through Ryngard.
"See that one, with the burn scars and dark veins? Don't stick too close; he shoots fireblood before engagements. Keeps friends and foes alike at bay, it does."
The simplest way to tell if someone is a Thaumatech Engineer is often to ask to see his kit bag…
Thaumatechnology - in a world where straight magic has an unnerving tendency to get the user killed, either by magical catastrophe or by being lynched by an upset mob, this is a much safer form of magical use… Even if it does occasionally explode.
Pirates' many bejeweled rings and piercings actually had a practical purpose - when the pirate or sailor died, the rings could be taken off as payment for a proper burial, saving him from a watery grave. This could be tied into regional culture, or made into a quest (The Pirate's Lost Rings, etc.). Also gives treasure-seeking divers another thing to look for besides crusty old chests.