I was searching on the Scratch wiki for a way to make the Mandelbrot Set in Scratch. Excellent article comes up on fractals, great tutorial. So step-by-step I copy it into the Scratch editor to see what it makes... ...and this... thing appears. It's not the Mandelbrot Set, but it sure does look cool. I think the Boomerang Set is a good name for it. It really does look like a boomerang.
Obviously, the Scratch wiki. But I do wonder if it's me that messed up, or the wiki that messed up... In fact, now that I think about it, I almost don't feel it's a mistake- but really more of a unique, fascinating fractal.