Westborough – A make-your-own-sundae fundraiser for Home Away Boston will be held Sunday, Dec. 18 from 5 to 7 p.m. at Uno Pizzeria & Grill, 255 Turnpike Road, Westborough. Uno will donate up to 20 percent of diners’ checks to the charity, a non-profit that provides housing for families who bring a child to Mass. General Hospital for 6-8 weeks of proton radiation cancer treatment. The ice cream sundae bar will be available for $1.99 per person and child ID kits will be provided by New York Life. For more information, call 508-616-0300.