Shaler -- The Shaler North Hills Library, 1822 Mount Royal Blvd., will hold a preschool and day care open house from 10 a.m. to noon Saturday. Participation is free for agencies, but registration is required by calling Susan at 412-486-0211. Parents do not need to register for the event.

Butler Township -- The Butler County Symphony Orchestra will perform "Facet-natin' Gems" at 7:30 p.m. April 25 at Butler Area Intermediate High School, 551 Fairground Hill Road. Call 724-283-1402 for tickets.

Hampton -- Hampton Presbyterian Church, 2942 E. Hardies Road, will hold its annual mystery dinner with "Cross My Heart and Hope to Die" at 6 p.m. April 29 through May 2. Tickets for April 29 and 30 are $18 each for dinner and the show or two for $35. Tickets for May 1 and 2 are $20 each or two for $38. Tickets are not available at the door. To order tickets, call 724-443-3201.

Marshall -- The township will show the PG-rated movie "Madagascar" for free at 7:30 p.m. tomorrow in the municipal building, 525 Pleasant Hill Road.

Ben Avon Heights -- Avonworth High School Class of 2010 will hold a fashion show and luncheon from noon to 4 p.m. Sunday at Shannopin Country Club, Windmere Road. Full meal served; cash bar available. Tickets are $22. Proceeds benefit the Avonworth class of 2010 and the Aaron Pellicano Family Fund. For reservations, call 412-741-1244.

Brighton Heights -- St. Cyril of Alexandria Guild of Christian Mothers will host Spring Fling, a dinner and card party, at 1 p.m. Sunday in St. Cyril's Axmacher Hall, 3854 Brighton Road. Tickets are $10. Call 412-931-4328.

Butler -- Lifesteps' Adult Day Health Services will host a doll show and teddy bear tea from 1 to 4 p.m. next Thursday at Lifesteps' Central Program facility on New Castle Road. Children and the public will have an opportunity to vote for their favorite doll and/or teddy bear. Refreshments will be served. Call 724-283-1010.

Mars -- Mars Business District will hold a luncheon and card party at noon Monday at Mars Veterans of Foreign Wars. Tickets are $6. Call 724-625-1858.

North Park -- Allegheny General Hospital will hold the Big Blue Quest, a fun run and walk for colorectal cancer awareness and research, beginning at 8:30 a.m. Saturday in North Park. T-shirts will be given to the first 1,000 registered participants. The event will take place on South Ridge, near the swimming pool. Pre-registration is $25; race-day registration is $30. To register, call 877-284-2000 or visit www.aghgiving.com.

Ohio Township -- The township will hold a Ladies Day Out from 10 a.m. to 2 p.m. Saturday at Community Park. Participants will be able to shop among home-party vendors and exchange gold for cash. Registration is required; call 412-364-6321.

Pittsburgh -- UPMC St. Margaret, 815 Freeport Road, near Aspinwall, will hold free screenings for skin cancer from 3 to 6 p.m. May 4 in the hospital's short-stay unit near Entrance C. UPMC Dermatologists from St. Margaret will screen patients for all types of skin cancer. The screening takes less than five minutes. If anything suspicious is detected, participants will be given further instructions by the physician. Screening times are limited. An appointment is necessary. Parking is free. To make an appointment, call 412-784-5534.

Cranberry -- Learn how to begin the genealogy process at the next Cranberry Genealogy Club meeting at 7 p.m. Wednesday in the library conference room of the Cranberry municipal center, 2525 Rochester Road.

McCandless -- Allegheny County Councilwoman Jan Rea will speak during the North Hills-McKnight branch of the American Association of University Women meeting at 6:45 p.m. Wednesday in the Ryan Room of La Roche College, 9100 Babcock Blvd.

McCandless -- The next meeting of the North Hills Genealogists will offer information on the role of German history and geography in performing genealogy research beginning at 6:45 p.m. Tuesday in Northland Public Library, 300 Cumberland Road. Visit www.northhillsgenealogists.org or call 724-935-6961.

Hampton -- Western Pennsylvania Mushroom Club will hold a mushroom walk from 10 a.m. to noon Saturday at Hampton Township Park. For more details and directions, call 412-486-7504 or visit www.wpamushroomclub.org.

Marshall -- Register by April 24 for the Aquafina Pitch, Hit and Run competition from 10 a.m. to 1 p.m. April 25 at Whitey Soergel Field in Knob Hill Park. The free program is for ages 7 to 14. Boys and girls compete together in four age groups. Registration required. Call 724-935-3090, ext. 115.

Butler -- Butler Public Library, 218 N. McKean St., will hold a book sale from 9 a.m. to 7 p.m. today and tomorrow and 9 a.m. to 5 p.m. Saturday. Call 724-287-1715.

Emsworth -- Sacred Heart Church Ladies Auxiliary will hold a flea market from 9 a.m. to 3 p.m. Saturday and Sunday at the church, 154 Orchard Ave.

Richland -- Northern Tier Library, 4015 Dickey Road, will hold a used book sale from 10 a.m. to 8 p.m. Wednesday and next Thursday, 10 a.m. to 4 p.m. April 24, and 9 a.m. to 4 p.m. April 25. Books will be half price from noon to 3 p.m. April 26. Bag sale will be held from 10 a.m. to 8 p.m. April 27. Call 724-449-2665.

Reserve -- St. Aloysius Church, 3616 Mount Troy Road, will hold a rummage sale from 8 a.m. to 2 p.m. Saturday and 12:30 to 3:30 p.m. Sunday. Call 412-821-3610.

Saxonburg -- Saxonburg Area Library, 240 W. Main St., will hold a book sale from 10 a.m. to 7 p.m. today and from 10 a.m. to 5 p.m. tomorrow and Saturday. Call 724-352-4810.

Troy Hill -- Most Holy Name Church, Claim Street, will hold a flea market from 1 to 7:30 p.m. Saturday and 8:30 a.m. to noon Sunday in the church hall.

Sewickley -- Sewickley Valley YMCA, 625 Blackburn Road, will offer free tours, workouts and more on Saturday. Call 412-741-9622.

Sewickley -- Registration is open for summer day camp at the Sewickley Valley YMCA, 625 Blackburn Road. Five, two-week camps for preschoolers, school-age children and teens will be held from June 8 through Aug. 14. Activities include swimming, arts and crafts, values education, field trips and hikes. Scholarships available. Visit www.sewickleyymca.org or call Marc Smith, senior director for youth, teen and family, at 412-741-9622, ext. 103.

Sewickley -- Sewickley Valley YMCA, 625 Blackburn Road, will hold Y Splash, a family pool event, to be held June 1-5. YMCA certified instructors will offer one week of free swim instruction and water safety for non-swimmers ages 3-5 (in the Warm Water Pool and Large Pool) and for ages 6-12 (in the Large Pool). Registration opens Monday through May 15. Contact Kelly Wagner, Senior Director for Aquatics, at 412-741-9622, ext. 110, or e-mail at kwagner@sewickleyymca.org.

Millvale -- Sisters of St. Francis will offer free mental health counseling services from 6 to 8 p.m. on the second and fourth Tuesday of each month, beginning April 28, at the Neighborhood Wellness Site, 517 Lincoln Ave. Individuals struggling with depression, anxiety, addiction, life-coping skills, relationship issues or stress will have an opportunity to safely explore issues and challenges that they have been unable to resolve on their own with therapist Don Laird. To schedule an appointment or for more information, call 412-335-4253 between 11 a.m. and 7 p.m. Mondays only.

Bellevue -- Allegheny General Hospital Suburban Campus Auxiliary has a need for volunteers in several areas. Volunteers receive free meals and parking. For information, call 412-766-1546.

Pine -- Two foster care agencies, Bair Foundation and Every Child, will provide information and advice on foster care during the Orphancare Foster Care workshop from 12:30 to 2 p.m. April 26 at Northway Christian Community, 12121 Perry Highway. Free. Lunch and childcare provided. Register children by tomorrow. To register, contact Karen James at karenj@northway.org or 724-935-6803, ext. 1270.