Dubbing, chenille, fur and synthetic fishing lines form a body of varying volume and movement. Feathers, marabous and hackles have specific jobs and are not interchangeable just because they look similar. For dry fly, it looks for materials that support the required buoyancy; In the case of a nymph or streamer, the leading may be the profile, pulsation and controlled sinking.
Beads and wire add mass or segmentation, but must fit the hook and leave room by the ear. Glue, cement or UV coating are used sparingly and as directed by the manufacturer. Too much material doesn't make the fly healthier. More important are the even base, fixed coils and the clean finish that allows repeated tying.
Keep natural and synthetic materials dry, separated and clearly labeled. Do not store damp feathers or fur in a thick box. The threads and wires should remain untangled and the small beads should have their own closing compartment. Prepare only the quantity for the current series, instead of scattering the entire stock on the workbench. The recipe arrangement saves demand and keeps the rare details from mixing with remnants of another fly.
For related categories, see Muharnic fishing, Hooks, Instruments, the boxes and the binders and fishing lines and leaders.