Using a weaving technique that I saw Don Freschi (one of the hosts on Sport Fishing on the Fly) use for a chironomid pattern, I built up a really nice looking body, using contrasting colors of chenille and yarn. The effect was great – building up the body really nice. Using foam underneath the weave also helped build up the body, and along with the foam eyes, I hope that it floats!

The basic pattern was something like this:

Hook: #6 streamer
Tail: Olive marabou
Underbody: 1/8″ strip of foam
Body: Medium dark olive chenille and light olive chenille (tried other combinations, including peacock ice yarn, which looked very good)
Legs:
Olive sillilegs and olive partridge rump – wrapped a couple times like a sparse carey.
Eyes: black foam

Here are a couple other variations that I did. The one without the foam eyes also uses a lead underbody instead of foam.