I have always enjoyed Haiku. It can be difficult to fit what you want to say in such a rigid structure, but I find that, when done well, Haiku can be quite powerful in its briefness and simplicity.
I don't claim to be able to write great Haiku, but I have written a few that I thought were okay. I have featured the first (of possibly many) on a button. Here's a picture:
This Haiku says:
Money is okay,
But Lucy van Pelt was Right,
I want Real Estate.
This was written during a small online Haiku competition I was participating in a few years ago. I believe the topic we had to write on was "money". I don't remember how I placed with this particular Haiku that week, but I do know I placed second overall in the competition. Not too bad.
Another Haiku I wrote more recently:
To write haiku well,
One must be concise in words.
An ancient Twitter?
Do you have a Haiku you'd like to share?