| | Re: Attaching a not so flat back
I have been burning the not so flat ones and then filing. Sometimes I can't do that so I attach some felt (Same size as the button bottom just trim it so you can't tell) then I glue the button to the felt and the felt to the bobby pin. I then sew the felt around the bobby pin a few times. (Just stick your needle in a tiny corner piece of felt).
It sounds complicated but it's not, I promise!