Flashabou

sadly I'm old enough to remember when flashabou became available. It was the first "wing" flash beyond putting a strand or two of stiff tinsel into a wing. Still as effective as it was all those decades ago. Sometimes a small streamer tied with nothing but gold and silver flashabou can be absolutely deadly on everything from trout to bluefish.

It's Flashabou.

I have started adding a little bit of this flash in the tail of a slumpbuster. You can always use flash in just about everything.
A package of this goes a long way.
Try different colors.