Mubu’s Summer Costume Party. 10 a.m. to noon next Saturday, Museum of disABILITY History, 3826 Main St. Whether a princess, superhero or favorite character, kids can dress up and have fun. The event is an opportunity to learn about “Mubu the Morph,” a fun book series about self-confidence for children in grades K-3. For more info or to RSVP, call 629-3626. Free.