I don't have a sewing machine, but will try to find someone to make some for me. Thanks for the ideas!
I didn't use a sewing machine for one of mine because it was stored away - so I just used small hand stitches with fabric remnants and a needle and thread to make one of my diapers. I followed the pattern idea on youtube by chickenmom. It's still the best DIY diaper pattern. I can make a paper pattern and press it to a chicken's chest to see if I cut it too wide or too narrow or too short. If it's too narrow or too wide in the pouch it won't catch the poops and they land on top of the pouch instead of inside the pouch! I was lazy on a pouch I cut too wide and used elastic to gather the slack at the top piece of the pouch so it hugged the chicken butt. Where there's a need, there's a way! I don't cover the elastic straps with material. I use soft underwear elastic on the narrow-side under 1/2-inch rather than wide elastic. The softer elastic stretches easily and is not so binding on the hen.