Thanks Rhonda. I haven't sewed the middle (w/black thread) & put a magnets on yet. It is flat & comes in strips, says for office use & crafts. If it won't keep the butterflies up, I'll use a little fabric glue, let it dry, then try again. I also have E-6000 for jewelry, but not sure if that would harm the cotton.
I'm in the trial & error stage here. I'd hate to sell them & get neg feedback. I'll let you know later. TTUL.........