Please check out the instruction below: How To Make Boutique Hair Bow--4--Lining Hair Clips
I use 3/8" ribbon to line 30mm snap clips
. From my experience, ribbon lined 30mm hair clips w/ or w/o applique is the most popular products.
50 mm snap clips can be wrapped using 1/4" ribbon. More time consuming. I do not make that but a lot of customers purchase plain 50mm snap clips
from my store so I think they are popular too.