The Oregon Potters’ Association presents its 40th annual Ceramic Showcase from April 28-30 in Hall A of the Oregon Convention Center, 777 N.E. Martin Luther King Jr. Blvd., Portland. Hours are 10 a.m. to 7 p.m. April 28, 10 a.m. to 6 p.m. April 29 and 10 a.m. to 4 p.m. April 30. Enjoy “happy hour shopping” from 3 to 7 p.m. April 28 and from 4 to 6 p.m. April 29. See professional demonstrations, play in the Clay Exploration area, visit the Founders’ Gallery, enter a silent auction for work by Ellen Currans and enter a drawing for three grand prize packages. Payment for purchases will be credit or debit only; no checks. The event is free to attend but donations in the amount of $3 are welcome. Learn more at oregonpotters.org/ceramic-showcase/.