( This is a back up post - originally posted by Robert MacDonald-Lewis )
I used a simple wee blue and black lure earlier in the year with some reasonable success. The patter is:
Hook: Standard wet fly hook (size 10 or 12)
Thread: Black
Beads: Silver chain bead, I used small but size to suit hook and weight needed.
Tail: Black Marabou with 2-3 strands of olive/gold flash over
Rib: Silver wire
Body: Light blue dubbing (I used Vicuña dubbing but whatever you have will do)
Hackle: Dyed Blue Grizzly palmered (I like a softish "henny cock" for palmered hackles)
I tied this fly quite sparsely. The body colour is closer to kingfisher blue than navy, but the exact shade probably doesn't matter to be honest.
I suspect the pattern is not that immportant, the general colour scheme and profile is what to concentrate on. You could vary most of the components and still produce a fly that works. Experiment with different flash, ribbing and beads are the obvious and relatively easy ones. A crinkled flash might be a good choice and standard beads would work equally well.