Thanks all. Here are some comments:

I found horse hair from my horse of course!

Truth be told, my wife's horse of 23 years just died on Thursday and it is customary in her English riding circles to trim a portion of the tail to braid.

I wanted to also pay my respect by tying up a nice fly using some of the long coarse horse tail hair.

Hans - I love your reply regarding the phenomenons.

Regards in this time of her grief.
paff