I would love a cheap and crappy line of ship modules. Something that looks like it was built by a Ebbsider, left out in bad weather, bribed the safety inspector, and should never been flown in space by anyone who values their life.
I was thinking I might do some custom modules and cowling, maybe some variants with different furnishings. A whole company sounds like a lot of work though.
I did a Fallout 4 mod on LoversLab called the Raiders Reform School. So probably something along similar lines. NSFW, of course, so not everyone's cup of tea
I am fully committed to bringing over a joke of a company I came up with for Fallout into Starfield. They're basically ACME from Looney Toons and the player is Wily E. Coyote. They diversify, too. They make food, chems, guns, pre-fab bunker kits (to compete with Vault-Tec), and with Starfield, ships! All with unique quirks that make you wonder why you chose Bunk Co. Brand products.
They would be slightly worse than the leading competition, but the price reflects it. They also come with random bad effects. Like every once in a while, their laser guns would just explode and discharge your remaining ammo charge, hurting anything in range. Things like that. Along with a narrative involving their history for a little quest to introduce them.
The idea originally came from wanting to make my own "Wild Wasteland" mod for Fallout 4 but I only thought of most of the things I wrote down after Starfield was announced so I've just been waiting for the game and toolset to come out so I can work it into the newer game. It would fit way better than I imagined with the game's actual lore, which makes it even easier to adjust it from Fallout.
I'd like to be able to create 'homemade' ship parts using the crafting skill set. It might use loads of hard to get parts that are only really useful for making high level energy gens right now and skill points invested in ship design and the crafting one