This is one of the neatest discs I have ever had. It's a proto leo in champ plastic (not blizzard, no bubbles) and only weighs 108g. It has this really awesome leaf like pattern that you can see in the second picture in the red areas. In no light, it just looks green all over, but in sunlight, it shows every color of the rainbow as somewhat seen in the first picture(it looks way more awesome in person than in the first picture if you can believe it). I guess I would call it leaf like pattern? I mean, the main thing that is unique I'd say is that the direction of the "leaf" goes all over the place.
edit- I also love this thread. Thank you!