$1 off any Frappe or Fruit Smoothie at McDonalds! July 13, 2010 This post may contain a link to an affiliate. See my disclosure policy for more information. McDonald’s is offering up a coupon good for $1 off the new Fruit Smoothie or a Frappe. The coupon expires August 15th. This coupon uses a LOT of ink…the page is pretty much all pink and purple. Thanks, Common Sense With Money!