This is a popper I created a while ago. I have since changed the pattern around a few times. This is where I am currently. It does work well. Of course the last time I tried it, the tail was green instead of red.
Hook and Body: Wapsi size 10 hook and body
Thread: 6/0 Uni in black
Legs: Green with black or pepper flake
Hackle: Green dyed Grizzly hackle
Tail: Red calf tail with olive Krystal Flash
I like the color combos but I ma not sure how I really feel about the legs. They just seemed to be the best match.