Okay I'm super excited about these. My friend gave me the idea that I should use my business card as the backing for my earrings. Well last night I got started on that. Sadly these are all of those kind of earring bits I have. The rest I have don't have any sort of backs so I couldn't display them like this. Also the middle ones have claw clips so you can switch them out without having to take them out of your ears.
These are all $8/640 shipped in the USA. Unless you want more "switch" sets which would be like the pair not on a card, those are $5/400 shipped in the USA.