get a picture frame, line it inside with cork. stick your post pierced earrings in it.
get an 11x14 picture frame. get some small diameter wooden rods. by small i mean that the a french hook earring will slip right over it - 1/16'' or 1/8'' take out any glass or
backing in frame. flip over. cut rods to width/length of frame. use ep600 glue to
place rods across frame. i have longer drop earrings, so i made the bottom "rung"
long enough off the bottom of the frame that they hang freely. measure length of drop of earrings and adjust height between rods. i have at least 50 pairs hanging this way, no problems. you can hang on wall or lean against it on dresser.
Here's a quick drawing. the hardest part is waiting for the glue to dry.
A board in a A shape with hinges and nail a hole bunch of nails with heads in to hold earings