Find a costume for your four-legged friend and scope out the competition while you enjoy all the market has to offer: locally grown vegetables, fruits, plants and herbs, an assortment of prepared foods, baked goods, arts and crafts and local authors.

Contest categories include: cutest, funniest, spookiest, most creative, best pet/owner look-a-like and best costumed rescue.

Prizes and trophies will be awarded to the winners.

The contest begins at noon; a $10 donation to the Humane Society is required for each pet entered.

Register in advance at www.hssc.org/howl-o-ween-registration. HSSC will accept on-site registration from 10:30 to 11:45 a.m. on the day of the contest.