Take a 2" round cookie cutter and cut circles out of the bread slices. You can usually get 3 to 4 to a slice (make bread crumbs with the remaining bread or give the extra bread to the birds or the dog).
Mix the cream cheese, sour cream and Gallopin' Gourmet Shake in a bowl and let sit for an hour. You can also make ahead the day before and keep in refrigerator (just let soften before you spread on the bread rounds).
Slice the cucumbers, spread a little softened, cream cheese mixture on the bread round, add slice of cucumber and then garnish with a parsley snippet.