COUNTYButler County Historical Society will present “Marketing the Presidency,” a talk by Steve Mihaly, recently retired vice president of the H.J. Heinz in Pittsburgh, at 6:30 p.m. Saturday at the YWCA, 120 W. Cunningham St. Some of the items in the presentation include a James Monroe snuff box promoting the Monroe Doctrine, a Teddy Roosevelt cast iron door stop, and an Eisenhower bar of soap with Ike’s image on it and the words “Clean Up with Ike.” Admission is free but reservations are required. Call 724-283-8116 or send e-mail to society@butlerhistory.com.The Old Stone House will host an exhibition called “Here & There,” exploring batik craftsmanship and techniques used to create the designs on cloth, from 2 to 4 p.m. Saturday; admission is free. School-aged children can try basic batik activities. School teachers and art camp directors can register their students ahead of time to ensure sufficient materials. For more information, call 724-738-4586.Harmony Museum, 218 Mercer St., offers tours from 1 to 4 p.m. daily, except when the museum is closed Mondays. Admission is $7 for adults, $6 for senior citizens, and $3 for youths ages 6 to 17. Call 724-452-7341.

PITTSBURGHHeinz History Center, 1212 Smallman St., presents “Toys of the ’50s, ’60s and ’70s.” Admission is $16 for adults, $14 for senior citizens, and $6.50 for children 6 to 17. Hours are 10 a.m. to 5 p.m. daily. Visit www.heinzhistorycenter.org.National Aviary, 700 Arch St., has admission of $14 for adults and $13 for senior citizens and children ages 2 to 12. Hours are 10 a.m. to 5 p.m. daily. Visit www.aviary.org.Children’s Museum, Allegheny Square, presents TapeScape 2.0, showing unexpected uses for packing tape, through May 22. Hours are 10 a.m. to 5 p.m. daily. Admission is $14 for adults and $13 for children 2 to 18 and senior citizens. Visit www.pittsburghkids.org.