You provide the mnemonic - everyone else tries to guess what it is for.
Here goes the first one:
Gummy Bears Don’t Fly Airplanes
The lines on the bass clef.
Yay!
Papa Eats Momma’s Delicious Apple Streusel
Order of operations
Yes!
xkcd had some fun ones a while back:
Mary’s “Virgin” Explanation Made Joseph Suspect Upstairs Neighbor
Planets, after Pluto left.
Found an interesting one:
When Juries Lack Honor, Justice Gets Forgotten
Washington 1, Jefferson 2, Lincoln 5, Hamilton 10, Jackson 20, Grant 50, Franklin 100 (people talking about Benjamins had me messed up for a minute)
I don’t have a new mnemonic though, someone else do it.
The one I took that from went up to $100,000. I didn’t even know we ever made bills that large.