I used Velcro to attach the straps around the front bar of my Mom's "purse style" bag, then a magnetic snap for closure. Since you are making in bulk, I would go with something cheaper for a closure, or not at all if they are just used for Kleenex and chap stick. My suggestion is to make them in a variety of readily recognizable colors or patterns. If you have ever spent much time in an assisted or nursing home, and there is a gathering of people or even in the dining room, it is like a parking lot of walkers! Mom always appreciated being able to locate hers by the bag ! No advice on the snaps but just looked at Kamsnaps site and it looks amazing.