A mnemonic that is taught in classrooms in Canada: Black Bears Roam Our Yukon Grounds But Vanish in Gray Winter for Gold Silver NecklacesNope, as you know, it's essential. You may even know the dirty lil ditty I was taught at age 10 that's used to recall the resistance code stripes. Definitely not PC.
England: Bill Brown Realised Only Yesterday Good Boys Value Good Work. and Bye Bye Rosie Off You Go to Bristol Via Great Western
USA: Big Boys Race Our Young Girls But Violet Generally Wins
https://en.wikipedia.org/wiki/List_of_electronic_color_code_mnemonics#Canada
It also has the BAD/Good ones!!!