Big Game Solar Collector
Hook - Partridge Czech Nymph "CZ/SHR" (Size 12)
Underbody - UNI-Stretch (White)
Abdomen - 30# Test Trilene Big Game Fishing Line ("Solar Collector" = bright green)
Thread - 8/0 UNI-Thread (Camel)
Thorax - Ostrich Herl (Black) - reinforced in thread dubbing loop
Hackle - Hen Neck Hackle (Grizzly)
I recently bought a spool of this bright green fishing line from Walmart, to use it for some experiments with furled leaders (high viz tenkara line, or for sighting bite indicators).
I started playing around with it, and was curious to see what it would look like on the body of a fly. It might work, or it may simply blind the fish. This stuff is amazingly bright (neon chartreuse green).
After tying this fly, I'd recommend using a smaller diameter (maybe 20# or 25# test version), especially for smaller versions. The 30# test (0.022" or 0.56 mm) is rather thick (hard to make the first wrap without deforming the underbody).
Anyway, just an excuse to play around at the vise...