These strategies you use of course depends on the size, production capabilities, and selling methods you use in your business. First you have to have a business identity. Define exactly what your business is, then define who is your target customer. A small business does not have the time or funds to use the shot gun approach in marketing. Develop your niche and point all your efforts at that target market.
Marketing is a snowball effect, growing as it rolls along.
Ask customers for referrals, offer to put their friends on your free mailing list. At any function, church, school, club, organization, business, whatever, work into the conversation that you make crafts and pass out your card, show schedule, or brochure. Make them available for pick free up by browsers in your booth, and be use them as bag stuffers with every sale. Use the above contacts to offer to do a show and tell about your craft at meetings. You can talk about the techniques or the history of your craft, or even demonstrate your technique.