they are from a HUGE lot of ring shanks i managed to buy
(and am trying to clean up and make them prettyer to sell
)
this picture-
http://img90.imageshack.us/img90/215/image3zr3.jpg
(the whiteish metal one on the right is the original plating-diffrent one)
the one on the left with the flat pad is one i ground down with a harsh sandpaper (used my dremel so i could see the basemetals)