Get ready for some major O.C.D! (It's actually O.C.P.D. but most people just say O.C.D. (There I go!)) I usually name my manned ships according to what missions they are. E.G: Artemis 1 (moon mission), Hermes (interplanetary vessel), and other names similar. My probes are usually just abbreviations. E.G: K.O.K.D. (Kerbin Orbital Kethane Detector), M.M.S. (Minmus Mapping Satellite), etc. My space station names are unique to every one. E.G: K.I.S.S. (Kerbin International Space Station), K.O.O.S. (Kerbol Orbital Observation Station) And I use Mk. 1, Mk. 2, etc. at the end of the names whenever I make design changes. E.G: Adding 4 SRB's onto the rocket body. But I have no standardised naming scheme for my subassemblies... yet...