In my first attempt to sew with clear vinyl I created a test for a bus pass holder for my friend CatWithCats. It was a failure. The opening for the bus pass was too small.
They will be very cute and I will remake them this evening when I get home. It was a learning experience.
Vinyl is not the easiest thing to sew on/with. I used wax paper to sew on the vinyl and that worked well.
These may make up cute for gift card holders, would not need the hardware on them for that purpose.