A mod made just for fun, that replaces the Kushan Scout with a Goldfish. If you like these sort of mods, you might want to also take a look at the following:
The Duck, Banana Mothership and the Beer Mothership.

"This mod replaces the scout with an unarmed goldfish. There's a live and dead version of the goldfish, simply remove the _dead suffix from the appropriate files and add a _live suffix to the other files (that's my suggestion anyways). Enjoy your own space aquarium."