This idea of how to modify that black foam half-snoot that I use to flag my speedlight with, was sent to me by Randall Todd. It allows the flag to be attached to the speedlight much easier than my less sophisticated method of using hair-bands.
“I have made and used Peter Gregg’s ABBC and found it to be very useful. Instead
of using his big rubber bands I went with a Velcro design. The attached photos should
show if fairly well. It’s simply 10-1/4″ of the fuzzy side of sticky hook & loop material
on the outside and about 9” of “3M” rubbery shelf liner on the inside. I used a piece
of double sided carpet tape to attach the shelf liner to the foam bounce card, and of
course, added a one inch piece of the hook material at the end. This really makes it
quick to attach and remove. As you can see I applied this to your flag idea.
Please forgive the background, I was outside enjoying an ice tea at the time.”