Omit Steps 1 and 2 in the Blueberry Snowballs recipe. Bring 2 1/4 cups water and 1 1/4 cups granulated sugar to a simmer in a small saucepan over medium-high, stirring occasionally until sugar dissolves. Remove from heat, and stir in 1 tsp. fresh lime zest and 3/4 cup fresh lime juice (from 6 limes). Cool sugar-lime mixture completely, about 30 minutes. Proceed with Steps 3 and 4 as directed.
Omit Steps 1 and 2 in the Blueberry Snowballs recipe. Bring 1 cup granulated sugar and 1/2 cup water to a boil in a small saucepan over medium-high, stirring occasionally, until sugar is dissolved. Chill sugar mixture 30 minutes. Process
5 cups seedless watermelon cubes and the chilled sugar mixture in a blender or food processor until completely smooth, about 1 minute. Pour mixture through a fine mesh strainer into a bowl, pressing lightly. Discard solids, and stir 3 tablespoons fresh lime juice (from 2 limes) into strained mixture. Proceed with Steps 3 and 4 as directed.