Here is some amusing wordplay. Forget "A as in Apple" and "X as in Xylophone" when people perhaps annoyingly, ask you to spell out a name. Maybe you could get by with alpha, Bravo,, and so on, but why not entertain (or exasperate) with one of the two following systems?
Ashley, Leonard R. N.
"Spelling It Out,"
Word Ways: Vol. 37
, Article 26.
Available at: https://digitalcommons.butler.edu/wordways/vol37/iss2/26