I just stuck the vinyl on and used a xacto blade to trim around the pvc card. No extra finishing needed. The PVC cards were the standard glossy kind.
With the shipping labels... because they were paper and thus more pulpy I did sand the edges very very slightly after cutting just to smooth out some of the pulp. But for vinyl I wouldnt suggest sanding.
Sounds good, thank you for all the help! Love your designs as well!
I shall post on here how it goes, thank you again!