The third Saturday of every month is considered a "special" market day. From the website:
Special Market Features on the third Saturday of the month on College Avenue between Durkee Street and Drew Street (Jun 16, Jul 21, Aug 18 and Sept 15)
DOWNTOWN APPLETON ART MARKET: featuring art & craft media produced by hand &/or light machine & includes jewelry, paintings, ornaments, sewing, ceramics, furniture& more! AND JUST ACT NATURAL GREEN MARKET: featuring products that help reduce, reuse & recycle the earth's resources!
I think even if we targeted these days that might be beneficial. Maybe we could share something with ReBoot? Anybody feel like making stuff to sell? Otherwise we could start with information.