Hi Carol --
this type of clipcard might help. The picture is a little hard to see -- the card itself is clear, and all that white you see, is a big sticker. Just peel off the top layer, and stick the clipcard to your business card or other nice paper.
I also don't understand why no matter how even a punch hole is ... earring cards never want to hang straight from a centerpunched hole. The clip card really helps with that, since it has a 1" line to hang from.
I do hope others also offer some idea and images of creative earring display solutions ...........
--Polly