Polypropylene Floating Yarn

I find this PFY and the McFlylon product are both great for not only Spinner wings but bodies as well.

Haven't tried it yet, but I saw it used in a tying video. It was used instead of dubbing. Looked just as good and made the fly easier to tie. Easier to use for old people like me, than making dubbing spinner tools and takes a lot less time. Great product:

Does what it needs too. I use them to make my flies more visible.