The mischievous smash pumpkins on Halloween. But at the Children’s Museum of Sonoma County, the staff obliterate pumpkins as part of their job. It’s called the Pumpkin Plop and it’s part of Funtazmagoria, the museum’s annual celebration of all things spooky (but not scary). The event also features blacklight play in the Glow-in-the-Dark Lab and science experiments, complete with beakers overflowing with whisps of white smoke, in the Mad Scientist Lab. Funtazmagoria will be held on October 27– 29, 2–7 p.m. at the museum in Santa Rosa. Admission is $20 or, for infants 11 months and younger, free; various discounts available for seniors, teachers, military personnel, and WIC, EBT, and MediCal beneficiaries. For details, and a video explaining the event, go to tinyurl.com/384j634j.