Look in the Rio Grande Packaging and Display catalog. They have
some very nice, heavy earring cards that can be printed, and some
that are pre-printed with "handmade". They also sell adapters that
peel and stick on the back to let them hang on the hanging displays.
The cards are larger than the plastic display cards, MUCH nicer
looking, and have 2 sets of holes, depending on the earring style.
They offer a range of cards, and hot stamp many of their display
items if you wish.
No connection, just a very satisfied customer!
Beth in SC