Nassau County Legislator Dave Denenberg, of Merrick, the Merrick Fire Department and New York Blood Center will sponsor a blood drive from 4 to 8:30 p.m. on Thursday, Feb. 28, at the Merrick fire station, at 2300 Merrick Ave. Donors, who must have a valid ID, weigh at least 110 pounds, be between 16 and 76 years old and not have gotten a tattoo in the last year, will receive two free tickets to a New York Mets game.