Jon Hamm , who’s in town to film “Clear History” with Larry David , was spotted drinking Maker’s Mark on the rocks at Scampo over the weekend. . . . Former Red Sox pitcher Pedro Martinez had dinner at Strega Waterfront on Saturday night. . . . Gisele Bundchen and her son Benjamin walked along the Charles River on Saturday and took a bike ride on Sunday. National Grid announced on Sunday that it will donate $700 to the Joe Andruzzi Foundation every time Gisele’s husband, Tom Brady , throws a regular-season touchdown this year.