Just can’t get enough pumpkin? Fortunately for you, the Boston Public Market is hosting a special festival to celebrate this autumn fruit, with vendors offering a variety of foods and beverages that highlight it — including ice cream from Crescent Ridge Dairy, chocolate from Taza, pie from Sienna Farms, donuts from Jennifer Lee’s Bakery and beer and cider from Hopsters Alley. Add in hands-on activities (think pumpkin carving) for a festive afternoon. Tickets $5 – $20.