I'm an Altoid mint tin saver... They are the perfect size for pins and they fit bobbins perfectly! I had tried doing the altered Altoid tins where you paint them and glue fabric or paper on them but I didn't like the way they felt when they were done so I'm back to regular Altoid tins - but I think I'm going to spray paint the tops and bottoms of them and then Sharpie or use a label maker to mark what's in them....