AHHHH VOTIVE PLACECARDS!!!! Please help! UDATED...I'm DONE!

ok, why am I doing these? They aren't even serving as real placecards. Anyway, many thanks to mellissaandsean for her help with the cardboard cutout idea. It worked great! my lastest issue is getting the vellum to stink...I'm using doubles sided tapebut i got up this mring and hte all fell apart. Am i supposed to put the tape on the galss and the endge of the vellum over it? or put the tape inbtween the vellum and make sure it is long enough that it overlaps? AAAAAAAAAHHHHHHHHHHHHHHHHHHHHH