This has probably been done before
But shut the front door!
Which swear word substitutes do you use or like, dagnabbit?
Mother of pearl.
From WC Fields? I don’t remember.
Lots from media:
Mother pus-bucket!
Frakk and all of its variations
Belgium
Usually I just swear in English. And Spanish.
Oh fuuuuudge
Oedipus Rex!
I used to work with a woman who, if she got frustrated, would say “Oh, dirty words!”
Gee-em Chrysler!
I just say fucking shit and then follow up with, pardone my French.
Jebus 
Back the truck up!
I used Bad Words a lot back when I was working.
I also used Poopyhead and fardles. (Well, I stopped using fardles when someone thought I had used another F word, but it was a stand by for over 20 years.)
Barnacles!
Also, I’m not sure if cuntasourus counts or not, but it’s a fun one to tell people not to be.
“Stop being a cuntasourus” should, technically, not be considered an obscenity.
I’ve always been fond of “mofo”.
mmm
This thread reminded me of this brilliant commercial.
Fiddledeedee! That will require a tetanus shot.
LOL! A good one!
Shut the French toast?!
holy flurking schnit!
From Car Talk, of course, there’s: “Son…ja Henie’s Tutu!”
Qu’vatlh!
That’s Klingon, and if pronounced correctly sounds more like a curse than anything in English.
Do you need a salivary gland transplant to pronounce it correctly?