lol not nearly as imaginative as many above.
I name most of mine after USN aircraft carriers (including changing the ID to the historical hull number).
So far,
Langley (CV 1) - Starter Sidewinder
Ranger (CV 4) - Vulture
Essex (CV 9) - Federal Assault Ship
Intrepid (CV 11) - Diamondback Explorer
Ticonderoga (CV 14) - Imperial Clipper
Boxer (CV 21) - Python
Oriskany (CV 34) - Dolphin
Princeton (CV 37) - Federal Dropship
Shangri-La (CV 38) - Cobra Mk III
Monterey (CVL 26) - Imperial Courier
Camden (AOE 2) - Type 9 (primary job is lugging tritium for the FC, an oiler name just seemed appropriate)
FC is Yorktown. Sadly, of course, cannot alter the hull designation number, which would be CV 5 if I could.
Looking ahead, Imperial Cutter and Federal Corvette will be commissioned as Lexington (CV 2) and Saratoga (CV 3), respectively.
Wasp (CV 7), Hornet (CV 8), Constellation (CV 64), Kitty Hawk (CV 63), Independence (CV 61), Coral Sea (CV 43) and Valley Forge (CV 45) are the "short list" for the next few ships I pick up.
Some might note the omission of Enterprise (CV 6), possibly the most famous of them all. In a space game, just smacked too much of a Star Trek reference, I guess, so I've avoided it.