Both the Klingons and the Romulans have Bird-of-Prey ships due to Star Trek III: The Search For Spock's art department ... inspired by a 1970s concept from Star Wars legend Ralph McQuarrie ...

and the ship grew in popularity. Of course, Star Trek fanfiction was nothing new when DS9 premiered in 1993. In fact, the Star Trek fandom pretty much invented the modern concept of fanfic.