Haircut fundraiser: Headlines Barber Shop will offer free haircuts from 10 a.m. to 4 p.m. today. Donations will be collected and given to the Children's Cancer Center. The shop is at 6425 County Line Road in New Tampa. For more information, call (813) 907-0707.
Disability expo and forum: Discover the latest technology, ideas and apps for people living with disabilities during the Hillsborough County Disability Expo and Public Forum, from 9:30 a.m. to 2 p.m. Wednesday at County Center, 601 E Kennedy Blvd. The expo theme is ADA: Innovations and Access and includes food, prizes, exhibits and demonstrations. The public forum is from 10 to 11 a.m. Free. Call (813) 276-2742.
Astronomy misconceptions: Astronomy enthusiast Craig MacDougal will debunk six astronomy misconceptions followed by a discussion on moons, planets and stars. 7 p.m. Wednesday at John F. Germany Public Library, 900 N Ashley Drive. Free. For adults. Call (813) 273-3652.
Make recycled crafts: Learn how to create cool wallets and bags using everyday items like newspaper and tape, 2 p.m. Thursday at C. Blythe Andrews, Jr. Public Library, 2607 E Dr. Martin Luther King Jr. Blvd. Also at 4 p.m. Thursday at the Seminole Heights Branch Library, 4711 Central Ave. For teens in grades 6 to 12. Free. Call (813) 273-3652.
Immunization discussion: Join an informative discussion on childhood vaccines, the diseases they prevent and their safety, 6:30 p.m. Thursday at Tampa General Hospital Community Health Education Center, 740 S Village Circle. Free. Call toll-free 1-800-822-3627.
Hospital donations: St. Joseph's Children's Hospital is holding a "Christmas in July'' campaign to collect donations of money and new, unwrapped toys to entertain and comfort hospitalized kids throughout the year.
Make a donation by calling (813) 443-2046, or drop off new, unwrapped toys and donations in the circular drive in front of St. Joseph's Children's Hospital, 3001 W Dr. Martin Luther King Jr. Blvd., during the special "Christmas in July" community event from 7 a.m. to 3 p.m. Friday.
Donation requests include gift cards, electronics, kid-friendly movies, puzzles, arts and crafts supplies, bubbles, infant toys, crib mobiles, teen games and magazines.
History Center needs volunteers: The Tampa Bay History Center needs docents to lead tours for groups of children and adults. No previous experience is required. Must be available one weekday morning per week. All training is provided. Call (813) 675-8981.
Children singers needed: The Tampa Bay Children's Chorus needs singers for the 2012-13 season. Auditions are being held throughout July and the beginning of August. For an appointment, call (813) 977-5558 or visit tbcchorus.org.
Cleanup volunteers needed: Keep Tampa Bay Beautiful is recruiting volunteers for an East Tampa Community Action Event, 8 a.m. Aug. 3 at Al Barnes Park, 2902 N 32nd St. Volunteers will step into the streets of the East Tampa and Jackson Heights communities to assist with litter abatement efforts. To preregister, call (813) 221-8733.
Charles Greacen is an artist working in Hyde Park. To reach him, go to www.towntiles.com.