@monsieuricon When you say "mnemonics" do you mean "memory devices" or just the represented symbol?
@monsieuricon ah if they really want to learn Morse, better practice is not to use the mnemonic devices. Do you know about Koch and Farnsworth? There's been a lot of progress on how to learn Morse. I failed to learn it as a 12yo, which was why I didn't become a ham then. It took about forty years for me to try again. Using modern methods I overcame my failure. Now I use Morse almost exclusively...
@monsieuricon Ok. I was aware of the ham radio badge and Jamboree on the air:
https://www.scouting.org/international/jota-joti/jota/
Thus the thought that some of them might have this interest. 🙂