Nice ties FM.
The tyer's chenille hackle looks just like eyelash yarn to me. If you want to find some sparkling eyelash yarn, then I suggest Michaels and look for Martha Stewart Crafts Glitter Eyelash. They carry Bernat Boa yarn too which is great for tying worms and other extended bodied jigs/flies. It's very similar to your white/silver pictured in your first photo.
BTW, I bought skeins of both of those yarns while on sale there last week.
And...don't forget to visit Michaels web site to print off the weekly 40% off coupon that is good for any one regularly-priced item if you decide to go.
