ADHD&D of the Day. (Actually an idea I had over a year ago and did some actual work on already.)
A retro-futuristic Space Opera campaign inspired by 1920s styles, in which space travel is primarily motivated by Iridium and Paladium mining. Space nobles are families of industrialists running planets like company towns, whose agents are sabotaging efforts by independent miners to form refining and shipping coops, and avoid dealing with the barons and get better prices.