if you're looking for clothing tags, they sell those at the fabric store in the notions section.
you can try iron-on transfers
Are you making cloths? Are you looking for a label to put in them? Look for a local embrodery shop. One that make customized hats and jackets. The computerized embrodery machines work much like a dot matrix printer.
Office supply stores have all shapes and sizes of inkjet printable labels that you can either print yourself or take to a print shop and get something nice made.