Mix cranberries with 1/4 cup of the lime juice in a small bowl.

Remove cranberries from the lime juice and then mix with 1/4 cup sugar in a zip lock bag. Thoroughly mix until the cranberries are coated with the sugar.

Place cranberries on a cookie sheet covered with parchment paper to dry.

Combine cranberry juice, tequila, triple sec, remaining lime juice, and ice in a large blender. Blend until smooth.

Optional Step: Combine remaining sugar with salt on a shallow plate or bowl and mix. Rim each glass with the lime wedge and then dip in salt/sugar mixture.

Pour margarita mix into salt/sugar-rimmed glasses. Add a sprig of mint and 4-5 sugar-coated cranberries for garnish.