If you or anyone you know can manage their way around a sewing machine- these are super easy to make- then you can make them in every color/matching combo for each purse. I can't sew that straight of a line, but it doesn't matter because they still come out looking fab- and they won't cost you more than $15 to make...but i digress...:shame:
I sewed them between 32-36 inches long, then depending on the height of the bag- most I used 1/4 a yard of fabric, then when you fold it over, it comes to about 4.5-5 inches high. On the large Carly, though, I might even go for a 6-7 inch tall one- if Purseket makes them that tall, just so you have good structure- but still get the slouch.
Hope that helps!
Mandy