I realize that these drinks are not on the menu but since you are on this site I suppose you are an ice cream lover like me. These recipes use flavored coffee creamer to give milk shakes their candy bar flavors.
HEATH BAR MILKSHAKE
1/2 cup International Delight Heath Coffee Creamer
4-6 scoops vanilla Ice Cream
Heath Candy Bars, chopped
Cool Whip or Whipping Cream
Add creamer and ice cream to blender and mix until smooth
Serve with a dollop of whipping cream and chopped Heath Bar
ALMOND JOY MILKSHAKE (substitute International Delight Almond Joy flavor and candy)
PEPPERMINT PATTY MILKSHAKE (substitute International Delight Peppermint Pattie flavor and candy)
Coffee-mate also has two new flavors inspired by Girl Scout Cookies. You could follow the recipe above using these creamers to make Thin Mint and Samoa Milkshakes.