Mcdonald'S Restaurants

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In this Oct. 10, 2015 photo, the sun sets behind a McDonald's in Ebensburg, Pa. Participating McDonald's restaurants are rolling out five different variations of the Shamrock Shake next week. Their McCafé menu will feature the original Shamrock Shake, a Chocolate Shamrock Shake, a Shamrock Chocolate Chip Frappé, a Shamrock Hot Chocolate and a Shamrock Mocha. (AP Photo/Gene J. Puskar)