1. On small plate combine PRINGLES The Original and lime peel. Place the 2 tablespoons lime juice in wide, shallow container. Dip rims of 2 margarita glasses into juice. Roll rims of glasses in crumb mixture. Place 1/2 cup of the ice cubes into the glasses. Set aside.
2. Place the remaining 1 cup ice cubes in cocktail shaker or 4-cup glass measure. Add tequila, triple sec and the 3 tablespoons lime juice. Shake or stir for 30 seconds. Strain liquid into prepared glasses. Garnish with lime slices. Serve immediately.