Shamrock Shakes are back! From March 7-17, McDonald's owner/operators will donate 25 cents from each Shamrock Shake AND Shamrock Oreo McFlurry sold to support Minnesota’s six Ronald McDonald House Charities locations, including the Ronald McDonald House in Rochester, where families with children facing life-threatening illnesses and injuries stay for free. Since 2014, the Shamrock Shake fundraiser has raised nearly $840,000 to help families when they need it most. Enjoy a Shamrock Shake or Shamrock Oreo McFlurry, and thanks for supporting Ronald McDonald House families.