Rockhopper,
I beg to differ, the most common amphipod color I've encountered in Puget Sound has been orange. I tie a very simple pattern on a size 16 scud hook with a cream-colored, dubbed body (picked out underneath to represent legs) and about eight strands of orange Krystalfalsh as a shellback. It's very effective for cuttthroat and resident coho in the late winter and spring.