The original zonker pattern was tied by the American fly tyer Dan Byford in the 1970s and was quickly recognised the world over, as a big fish fly and extremely easy to tie, yet realistic imitation for most smaller bait fish. The original pattern used a lead or tin sheet that was folded and glued over the hook shank and then cut to shape to make the underbody.   This melt glue body technique gives the zonker a new life. If viewed by a fish in reflected light the shine and flashing of the maylar mixed with the animation of the pulsating fur strip, makes it a first class bait fish attractor pattern.  But when viewed by a fish in a back-lit situation ( in  silhouette ) this pattern really comes to life,  with the light penetrating through the transparent melt glue / maylar body and fur guard hairs.

Virtual Minnow streamer recipe

Hook: Mustad S74S SS Salt water R74 freshwater # 6 
Under body: Melt glue
Over Body: Mylar tubeing
Thread: Dyneema
Wing/tail: Fur zonker strip
Eyes: Prizma tape eyes.