April 30

2480 Bingham St., 9 a.m.-1 p.m., free. Browse hand-made gifts, plates, bowls and more. (941-8108, contact@hawaiipottersguild.org)

Waikele Center, near Leonard’s Malasada Truck, 7 a.m.-noon, free. Donate blood and save lives. Pre-registration recommended. (848-4770, bbh.org)

Hawaii Polo Club, 1:30 p.m., $12-$10. Hawaii Polo Club plays its 2017 season. (hawaii-polo.org)

Palladium at Ala Wai Golf Clubhouse, 6-9:15 p.m., $8-$5. Take lessons for the first hour, then dance away to swing and many other styles. Snacks provided. (529-8816)

Hawaii Theatre, 4 p.m. $7. Six of Iolani School’s orchestras perform a diverse program ranging from traditional American folk tunes to audience favorites. (943-2244)

Kawaiahao Church, 4 p.m., free. Honolulu Chorale presents its 15th annual community festival. (554-6269, info@honoluluchorale.org)

Waikiki Shell, 4-10 p.m., $69. Headliners are CeeLo Green, Grandmaster Flash, Bootsy Collins, Maxi Priest, Henry Kapono, Ohio Players, Fishbone, Ron Artis II, Ekolu Kalama and DJs Lethal, Mateo, Big Daddy Carlos and more. (oceanaidhawaii.org)

Blaisdell Exhibition Hall, noon-4 p.m., $45. Featuring Frank De Lima, Mana‘o Company, Kawaihone, Kapena, Damien’s band and hula halau. (841-0195 ext. 549, alumni@damien.edu)

Hoomaluhia Botanical Garden, May 1-28, 9 a.m.-4 p.m., free. Twenty artists showcase work inspired by the beauty of the garden. Reception is April 30 at 5:15 p.m., featuring a special poetry reading by Joseph Stanton. (alohahoomaluhia.com)

Calvary by the Sea Lutheran Church, 7 p.m., free. Watch a special community performance of the upcoming production of ‘Dragonfly,’ about the triumph of a foster child through the years. (playbuilders.org)

Mamiya Theatre, 4 p.m., $10-$5. Iolani Performing Arts Department presents an appeal against bullying, and an ode to the wonders of improv. (943-2244)