Not one of those fancy flies a fly dresser would use to show off his supposed tying skills, but a genuine Grayling magnet. One of the best performing winter flies, best fished on the dropper with a heavier beadhead on the point to drag the team down to the "killing zone".
an old #10 pupa hook I had lying around, some Japanese make I suppose
red Danville's 70 den tying thread
red Flexi Floss
a layer of thin Sally Hansen's