The alternative to suffering at the hands of the spouse, might possibly be a visit to ye local fabric shoppe. I suggest SEARCH the D.I.Y. forum for the how to make your own flashes. For very little expenditure, coordinated solid colour flashes can be had. I have used denim and heavy cotton twill. Most of the material has come out of the remnants bin for cheap. a stiffening lining material, some elastic, ( the waistband off of discarded underwear) some velcro, fabric glue, and scissors. If you wish some binding tape needle and thread can finish them off properly. I made four different coloured sets while in jones mode for my USAK American Heritage. I do own three sewing machines. I also have constructed three kilts from scratch thus far. I am not a kiltmaker yet, but am practicing.
Hint--- If ye spouse likes to sew or do crafts things, invite her along to a Joanns or similar venue for both of you to be creative together. She might warm to helping you.