Depends on your market. You could go for print advertising with a publication that reaches your market (geographical, interest). You could try mail marketing. D

Depends on your market. You could go for print advertising with a publication that reaches your market (geographical, interest). You could try mail marketing. Don't forget billboards, posters which, of course range in size (and associated cost) from A5 -> huge. Try spending a day noticing all the advertising you see. It will give you some ideas of your own.