Obviously, 12,500-pound elephants need to eat, especially on their birthday. Beulah, who’s appearing now at the Topsfield Fair, celebrated her 43rd birthday this week with a little help from Channel 5’s Shayna Seymour. Seymour presented the elephant with a cake. (The fair continues through Monday.)…On the (high) heels of their show at Boston Fashion Week, designing duo Michael De Paulo and Tonya Mezrich had a Mike&Ton trunk show at the Mandarin this week, and Gemvara’s Corinne Grousbeck was there pairing jewels and outfits. Guests included Linda Pizzuti Henry, Ashley Bernon, Tiffany Dowd, Doris Yaffe, Elena Matlack, Daniela Winston, Linda Holliday, and Tonya’s husband, author Ben Mezrich…Sox slugger David Ortiz had drinks with friends at Sonsie the other night…Bruin Shawn Thornton presided at the opening of Old Time Sports at Northshore Mall in Peabody yesterday.