Came across this idea: the BONTO Poem:

Basic rules:
The rules for the Bonto are as follows:

The first line should be as bizarre as possible
The second line finds a reason for the first line
The third line states the consequences of the first two lines
The fourth line encapsulates the poem and states a philosphical reflection on life
There are only four lines
The first two lines rhyme
The last two lines rhyme
Maximum of 7 or eight syllables
There must be an equal number of syllables in each and every line!