Use your squirrel tails to tie some really nice Hairwing streamers as Buddy said.
What I have found over the years, I see something I like, in materials and then find the the flies most suitable. Unfortunately the qualities in squirrel hair that are best make them excellent for wet flies.
With one tail you can tie an awful lot of flies, so they are a real bargain, makes them very popular here for salmon and sea-trout flies.

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Donald/Scotland