Check out DrMelon's Skin Deep mod!
We have our first player-made Skin Deep spaceship... DrMelon has completed a small ship with some mechanics and design gags that are totally unique to this map! I don't want to spoil them, but there are a lot of choices in here that made me very pleased!
You can find the mod on the Steam Workshop here. The mod is called "CSS Cucumber: Experimental Science Vessel".
We're very excited that people are actually modding Skin Deep! The level-by-level structure of the game provides IMO a pretty good framework for people to dive in and start making bite-sized little experiences that take 20-30 mins to play, but fit well among the game's other levels.