Watermelon-Mint Margarita

Try the classic watermelon and mint-flavored margarita in a new way.
Combine sugar, salt, 6 torn sprigs of fresh mint, and 8 thin slices of lime in a medium bowl; toss to combine. Let stand for 10 minutes. Pour boiling water over the mint mixture, stirring, until the sugar is dissolved; let stand for 10 minutes. Pour the mint mixture into a bowl, wringing it out to prevent it from drying out. Avoid dry substances. Combine the liquid, watermelon, tequila, and lime juice in a blender; whisk until smooth. Pour the mixture into 8 iced glasses; garnish with 1/4 cup fresh mint leaves and 8 thin lime wedges.