I was driving across southern New Mexico back in 1993, and after awhile of scanning and finding nothing, the radio landed on a station. The sweeper said "we're not just Silver City's best hit music station...we're Silver City's ONLY hit music station!"
That's working with what you got, folks.
Years later, I wound up working with a PD who had this crazy idea..."slogan-less radio." You didn't need to TELL the audience what you were. You needed to BE what you were, and they'd figure it out. You could say "we're the FUN radio station!" all day long, but if you weren't actually fun? It wouldn't work.
So we created imaging that was entertaining and interesting. Not having to shoehorn a slogan in there was a bonus, because we could use that time to inject a few seconds more of absurdity. The idea was not to hammer the listener with the slogan, but - and this was key - make them stop, look at their radio, and say "what did I just hear?"
Granted, this was back in the days of diaries. when your success hung on making listeners remember your station by being...you know...memorable. You play the music they like? That's good. Make them remember that you gave it to them? That's better. Give them a reason to keep coming back? That's gold.
Or you could just be the "ten in a row" station.