I have lately been enjoying a blog by Austin, TX artist/writer Austin Kleon, and have been happily plundering his archives for posts on sketching, storytelling, art, and the like.
I was charmed by this post: Writing The Fibonacci Sonnet. It's a neat little writing trick that uses the Fibonacci numbers (1,1,2,3,5,8, 13, 21) to create short short stories with sentences that have one word, one word, two words, three words, and so on. Kind of like haiku, except counting the words in the sentences instead of the syllables.
It also reminds me of the poet Jonathan Williams' dotty "meta-four" poems, where each line only had four words. An example of one of his meta-four poems in this Guardian UK obit. Here's a meta-four from another appreciation of Williams:
estimated acres of forest
henry david thoreau burned
down in 1844 trying
to cook fish he'd
caught for dinner 300