Here's the whole list:

https://en.wikipedia.org/wiki/List_of_spacecraft_in_the_Cult...

My all-time favorite is "Ultimate Ship the Second".

Minor spoilers, don't read below if you care:

I'm biased by my love for 'The Hydrogen Sonata,' but my favorite will always go to the Mistake Not...

Which is short for Mistake Not My Current State Of Joshing Gentle Peevishness For The Awesome And Terrible Majesty Of The Towering Seas Of Ire That Are Themselves The Mere Milquetoast Shallows Fringing My Vast Oceans Of Wrath.

If they ever start doing regular military missions (or we end up fighting bug-eyed aliens) I hope they add Falling Outside The Normal Moral Constraints. (Edit: Falling, not Operating.)