0 Coldwater Patterns, Fly Tying, Videos PMD Sparkle Dun by Tim Cammisa For this tutorial, I chose a fly created and popularized by Craig Mathews, the Sparkle Dun. This fly is a modified version of the comparadun, and represents a number of stages occurring before the dun is fully emerged. Fly Tying: Sulphur / PMD Sparkle DunFor this tutorial, I chose a fly created and popularized by Craig Mathews, the Sparkle Dun. This fly is a modified version of the comparadun, and represents… Click here for Tim Cammisa’s Hot Spots for Better Nymphs.