I have a bunch of these "Nymph-Head" brand tungsten beads laying around and honestly I rarely use them. They are advertised as being the heaviest tungsten beads on the market and come in a variety of buggy colors with little eyes on the side that really stand out when colored with a permanent marker. I usually opt for standard tungsten beads in black, gold, silver, and copper. But during a tying session of Woven Nymphs I remembered I had the "Nymph-Heads" in a Caddis type green and figured what the hell. A garden variety bead would work just as well but one reason we tie our own flies is the freedom to customize and change them. Sometimes to suite specific water conditions or a particular local hatch, and other times for purely esthetic or artistic reasons. If you see these beads in your local shop and have a little extra cash left over grab a pack. You may not have a pattern in mind for them when you do but once the creative juices get going at the vise I'm sure they won't go to waste.
Hook: Partridge CZ sz.16
Thread: Olive or Chartreuse Uni 8/0 for the abdomen, Black Uni 8/0 for the thorax
Bead: 1/8th in. "Nymph-Head" tungsten bead in Caddis Green, color eyes with black permanent marker
Underbody: 3 layers Veniard Lead Foil tapered
Rib: Chartreuse UTC Ultra Wire size small
Abdomen: DMC Embroidery Floss, Dark Brown for top, Chartreuse Green for bottom, woven with an Overhand Weave
Thorax: Black Hare's Ear spun in split thread dubbing loop
Collar: Peacock Ice-Dub brushed out