Calling all collectors! Enjoy the 18th annual 20th Century Cincinnati with a weekend of vintage modern design with plenty of home décor, furnishings, art glass, pottery, paintings, posters, metal wares, textile and more for your shopping pleasure. With 60 dealers filling up 20,000 square feet, find numerous pop culture relics from the 1920s through the 1980s ranging from investment quality to fun buys; there are ample choices for the collector in everyone. Also included in the weekend’s events is a special exhibit titled Bakelite and Beyond – Designs in Early Plastic exploring synthetic plastics with objects including bracelets, billiard balls, finials, flatware and more. Sharonville Convention Center. 11 a.m.-5 p.m. Saturday and Sunday. Tickets are $7; good for all weekend.