Here's a photo I took at the park:
I did't think much about it when I was there, taking photograph after photograph of them (we have Bald Cypresses in Chicago but they don't get knees, not enough water) that all look the same, but my parents had a giant, lumpy knee in our living room growing up. It must have been a gift because I can't see either of them wanting one. We used to play caveman with it and it was used for clubbing each other on the head. Explains a lot.
Here are some things people make out of them:
Sorta cool retro lamps (they are pricey!)
What do YOU have to say about them?