Jay 'Fishy' Fuller has created in my opinion one of the best Hopper patterns out there. It produces both warm and cold water fish well. He has added a wing material, wing to it over time. Well he a Trash Fly material switch up for it. Try a used dyer sheet for the wing case. Looks good and holds up pretty well.
Cut the sheet into a strip as wide as the hoppers back. Tie it down with last wrap of thread. When you apply head cement, super glue, or zap a gap glue it down. Try it. You have to love the look and you can't beat the price :)