in 1975, Howard Bergerson published an article "Automynocagrams" in Word Ways. The challenge at the end is to write an "automynorcagrammatical Raven". Here is my (short) attempt, begun in 1975 and put down many times between now and then.
Word Ways: Vol. 47
, Article 20.
Available at: https://digitalcommons.butler.edu/wordways/vol47/iss4/20