Okay, I think we have a pretty good solution. It's a tweak on the mention of the Blaze Orange Buff by pointer - thank you!
http://www.buffusa.com/collections/5#79The buff is a tube of fabric with no seams. It stretches in diameter, but not in length. I tried putting the buff on my head as described by the manufacturer, but it's tight on me and gives me a headache pretty quickly. There is only one size.
But I just need a band of orange, not the whole thing.
In looking at the fabric I noticed that the ends of the tube are just cut - there is no seam or finish on the edge. This suggests that it will not ravel if I cut off a section of the tube.
So I cut about 2 inches off the end of the tube with very sharp, high-quality scissors (Wescott ExtremeEdge Titanium).
http://www.sears.com/westcott-extre...-inch-bent-handle/p-05003282000P?prdNo=3So I now have what I would describe as a blaze orange fabric rubber band. With the shorter length of fabric tube it does not exert as much compression force, and also stretches more.
I successfully placed it over just my head, and also over several hats: a Sitka ball cap, a Mountain Hardwear ear-flap beanie, a military beanie, etc. Works!
I can see where it could get lost in the brush or high wind, so options I've considered: Take an extra (or two) since they weigh almost nothing, cut the band a bit wider to create more compression grip, or cut several from the one buff and tack-stitch them onto the hats I'm taking on a hunt, being sure to sew in the stretched position, not fully compressed to as to rip the stitch when I put the hat on and off.
I'll test this scouting and see how it goes, but I feel pretty safe in taking several on a hunt given the supremely light weight, and if all but the last band gets lost, I can sew the last one on in the field.
And I'll go with the common wisdom here on not worrying about the hood, but if I get hassled, I can just put it over the hood and be in compliance instantly.
Hope this helps someone - it sure helped me!