After some Lucky Charms? Follow the rainbow to Rosebud where they’re toasting to St. Patrick with a Lucky Charms milkshake. You can grab a seat between Thursday, March 16th and Sunday, March 19th, to enjoy the leprechaun-inspired libation. Vanilla ice cream and Irish whiskey lay the base for the hearts, stars, horseshoes, clovers and—you know the rest. On Saturday, March 18th, they’ll supplement the shake with chocolate Guinness doughnuts during brunch hours. Call 617.629.9500 for more info.