I do remember those leather hub cleaners but I don't think I've seen any since the 70's.
I think at the time I regarded them as being something only seen on higher end bikes like the British roadsters, "old people bikes". Maybe on some 10 speed Schwinns too.
Me and my group of buddies didn't think they were cool. They were something "grown ups" had, the old people who wore leather shoes and trousers, not jeans and sneakers. They also always had rubber bands around their pant legs to keep them out of the chain grease. Not cool. We liked getting dirty, that was cool.
Slick back tires? Cool. Baseball card in the spokes? Cool. Well, until you were nine or ten. After that if you still did it you were a baby and might get lumped for it.
Back in those days I was rockin' a 1975 Sears Free Spirit Spyder, purple, with a purple sparkle banana seat and purple sparkle grips. I remember the day I got it and put it together. All the reflectors and the streamers that came with it went right in the garbage. My sister got the girlie version, light blue with flowers on the seat and a white plastic wicker basket with big plastic flowers on it. She had dad put hers together with all the reflectors and the streamers too. Not cool. I never once rode that bike ever, she stole mine all the time.
With a Spyder I was marginally cool. Once I put a slick on it I was cool. If you were lucky enough to have a Schwinn Sting Ray you were really cool. If you lucked out and had a stick shift on your bike you were a bona fide rock star.
Balloon tire bikes were not cool in those days. A kid who had one of those was obviously so poor he had to ride his dad's old hand-me-down bike from when he was a kid. If you were spotted riding a ballooner in my town you had better be fast because you were definitely getting chased and lumped.
"Flabergeezers"? I'm not surprised at the stick in the spokes replies. My favorite though was to loosen the front axle nuts if I wanted to get even with somebody. He was fine until he popped that next wheelie...
You young guns should hang out with us old guys. We know stuff.