Pour about 1/4 cup of Dr. Pepper into the bottom of each glass. Then scoop out some ice cream until about 3/4 of the glass is full. Pour 1 TBSP of the cream of coconut into each glass, along with the juice of 1/4 lime. Top with another 1/4 cup of Dr. Pepper. Garnish with whipped cream, a cherry and a lime wedge.