A wrist pin cushion is great too. I haVe seen such pretty ones online. I haven't measured, but will try to soon. Some use some fabric covered elastic, or some velcro that could adjust between some smaller wrists to wider bone wrists. But they may be making one that requires a specific measurement, so that's a good idea.
I use to order some things from Avon, and with some of their bracelets they would always have a size 7 or 8 unless they were stretchy that would say fits most. Well I always ordered the size 8 because I have arthritis, and my bones swell a lot.
I don't know if that helps or not. lol....