I have probably spent close $40 trying all manner of pens etc, and the only one that worked really well was a CD marker, but it doesn't come in white or gold which is needed on some veneers As mentioned if you use a wipe on as I do they are the only one that don't smudge even after hours drying. Spray can no worries. wWite india ink left over night to dry completely and then a light wipe of finish as a first coat is where I'm at now.Few more coats buffing with 0000 steel wool and its all go.