Keith,

It's silver mylar for a body wrap covered with Sally Hansen's "Hard as Nails" fingernail polish. I think the mylar is called "flashabou". I use the small width stuff and grab about 3 or 4 strings of it and wind it down and up the body and then rib it with red holographic tinsel.

The body on the emergers looks closer to a gray silver so some people are cutting strips out of the anti-static bags that come with computer parts.

FishinfellaS is more into chronie experimenting than I am and he's really done some work with them.

Here's a website that if you follow it to the patterns gives the info on the "chromie" pattern.
http://www.flycraftangling.com/
Chromie pattern is on the archived flies.

I like the twist on indicators (rubber center) better than the corkies as the toothpick sometimes catches the fly line. It's best if the corkies is staked from the bottom rather than the top as the top is the way that gets hung up the most.

Its possible to double anchor a pontoon boat, but the easiest way I've found for pontoons is to use a single anchor...but have the line tied into both sides of the back of the pontoon boat. I had some line loops connected to the ring from a key ring and it would self center itself. Didn't sway back and forth in the wind as much... but it still did some.