You can't build a perfect fly box if you don't have a Black Ghost fly pattern.
Black Ghost
Tying The Highland Ghost
Ghost Buggers for the Puget Sound : r/flytying
Ghost Shrimp Flies for the Ghosts of the Surf, Fly of the Week
Grey Ghost Trout Lure or Streamer Fly - Sold in Many Variations
Ghost Hair Flies - Fly Tying - Maine Fly Fish
Fly Dressing Ghost - Fly-Dressing
10pcs Fly Tying Ghost Fish Head 3D Living Simulation Epoxy Fish
Green Ghost Fly tying patterns, Salmon flies, Steelhead flies
The Black Ghost is a classic streamer fly blending form and function.
Black Ghost Streamer