The first mop fly I tied was fluorescent orange, with pieces borrowed from a friend, and it worked, to my surprise, and I caught a couple of trout, rock bass and sunfish on it. As I acquired more mops/gloves I found colors like fluorescent orange, chartreuse, white, cream, yellow and gray that I used for larger mop flies tied on hooks size 8 to size 2...I initially found mini-mops in cream and gray, "fingers" suitable for tying on size 10 and size 12 hooks. I also found that the cream could be dyed. Below is the initial mini mop flies I tied up'T

Mini-mops.jpg

The original cream is in the top right and the gray is at the bottom. I've since found the smaller mop "fingers" in fluorescent orange and chartreuse.
What colors. Large mop flies, up to 2 1/2 inches long. White, chartreuse, yellow and fluorescent orange in descending order. Mini-mops, tied on size 10 and size 12 hooks, fluorescent orange, chartreuse, red and black.