Clown Car - Reference in the Barotrauma bonus content called "The Europan - Volume 66", the clown car is considered a magical transport that will take one to another dimension, at least according to the Church of the Honk Mother.

What would this look like in game? How can it be used? Perhaps it's just a custom submarine? What is Barotrauma's engine capable of?

More questions and ideas for later. It is unlikely that it is something that could be an actual moving car without some hacks to make it seem like a car.

Perhaps it is an inventory item for the Clown?

Ballast Flora as a Plantable Plant - Thats right, on the scale of mad ♥♥♥♥ to do on a sub this one is pretty high. What if we implemented the ability to "Grow" ballast flora for resources?

What kind of drops should it generate?

What Risks should it pose? More a engine limitation than anything but besides it growing towards the ballast and needing a flame thrower to "Prune" it.