Hamilton Gibson’s Women’s Project will ring in the holidays during “Christmas on Main Street” with “Holiday Shorts and Sweets,” featuring holiday-themed one-acts, seasonal musical numbers and some fun with holiday letters. You know what we mean by those letters, right? Some are heartwarming, some are downright gloomy, others are braggy, and some are poignant. This production is co-produced by Judith Sornberger and Yolie Canales.