But does it hold water?
I can't remember the name or subject of the class, but when I was in high school, one of our assignments was to give a demonstration speech.
One boy brought in a hockey stick and explained how to put a curve to the blade. It was a hat-trick* presentation ... 1) he was prepared, 2) he delivered his presentation with enthusiasm, and 3) with before and after hockey sticks on hand, he had relevant, engaging props. Even though I've never played hockey, I enjoyed the presentation.
When it was my turn, I initiated a hands-on origami exercise. The class followed along and we all folded a square sheet of paper into a cup. I recall some murmuring and a few moans and groans when I passed out the paper, but I won them over when I poured water from a pitcher into my cup and demonstrated that it would in fact, hold water.
It was the start of an origami obsession.
My next goal was to fold an origami crane and when I had that figured out, I challenged myself to fold one without looking at the directions. Still can.
Today is World Origami Day. If you want to ease into the art of origami, learn how to fold a cup that holds water: get your instructions here.
*In hockey, a hat-trick is when one player scores three goals in a single game. That kid put it in the net.