A few years ago I was on a big gardening kick and came across kohlrabi. It’s some sort of cabbage / mustard relative that’s normally harvested when it’s young. I decided to let them keep growing (I had no idea what to do with them), and they ended up with some looking like really weird aliens.
I never actually tried eating them but I’ve seen them occasionally at Winco – when I do, they are usually about the size of a small apple – ones like these are too woody to be edible, I think. I’ll have to find a recipe and pick some up next time. They are definitely going in my next garden, if only as a weird decoration.