The fact that you made it a poem, reminds me of some extempore poems that I made up as a kid - inspired by reading a book that my uncle bought me as a gift - The Golden Book of Fun and Nonsense [2]. It had a lot of funny poems, limericks, etc. in it.

Here are two I made up at the time:

Poem 1:

Mr. Jolly had a brolly [1]

Its handle was made of silver, and its body was made of gold.

And Mr. Jolly used the brolly when it was very cold.

[1] Brolly is a Brit term for umbrella.

Poem 2:

I climbed up a mountain.

There I saw a fountain.

One, two, three, four, five!

In it I'd like to dive.

Go ahead, laugh. It's meant to be funny and silly.

I'll also mention a few good ones I read in that book:

Into the drinking well

Which the plumber built her.

Aunt Eliza fell.

We must buy a filter.

Old Father William:

https://en.wikipedia.org/wiki/You_Are_Old,_Father_William

[2] The book is suitable for kids of all ages:

https://www.google.com/searchq=the+golden+book+of+fun+and+no...