I have made some of these pin cushions with cups and saucers but I always used the hot glue gun that wasn't really hot because I was afraid the hot glue would break the cup. Eventually, they came unglued. I am thinking now that silicone would work great and be a lot less messy. I always glued the cup to the saucer and that made a place for other little notions to sit (thinble etc.). Also, I always put a bit of fine steel wool in middle of any pin cushion that I make and surround it with poly fiberfil. Of course, where I live, it is not humid so do not know if it would work well where there is humid air to make it rust??? Loved all the pictures.