A couple of other outlets and is where I built a huge mailing list. One can take a booth in arts and crafts show to promote themselves. Some of the larger shows especially at this time of year also book acts to perform on stage.
One could also approach the show promoters and offer to provide free entertainment for the 2/3 days the show is running in exchange for the space and being able to pass out portfolios with booking info. Some of the larger shows can have 40/50,000 people come through in a weekend.