These are the real thing: Dog Bone Tags that are used for rabies shot tags or doggie ID tags. We thought they'd be great to enhance your artwork or as a clever gift tag for a animal lover. But, our best idea yet (at least we think so) - is to add one to paper sack for those who like to take part of their dinner home - doggie bags!
These are very hard metal and don't lend them selves to letter punches, but you'll easily etch them with a hand engraver - or use a clear matte sticker. And, of course, metal inks and paints will work as well.