local churches/schools/senior centers often have fairs with low cost tables. Get some cards made at vistaprint for very low cost with just your name and email. If you feel comfortable with a potential customer, you can always hand write your phone number. Also, try a bunch of new blocks and put them on tote bags. Since their pricing is much lower, it is a great draw for your table. If you sandwich rip stop nylon or very thin vinyl, it becomes a beach/pool bag. Make sure you have a couple stuffed as an example I like to do this when I am trying out new block ideas or new color combos.
I also use my scraps to make smaller bags and fill them with nice soaps or a wine bottle(empty!) to show them as gift bags. They are from scraps - so no 'real' cost. Even if you don't make a lot of profit, the feedback from the patrons can be very helpful.