Prepare the Watermelon:
Cut watermelon into cubes, removing any seeds.
Puree:
Place watermelon cubes in a blender or food processor. Blend until completely smooth.
Strain:
Pour the puree through a fine mesh strainer into a mixing bowl to remove pulp and any remaining seeds, pressing with a spoon to extract as much liquid as possible.
Flavor:
Stir in lime juice and honey. Taste and adjust the sweetness if needed.
Freeze in Cups:
Pour the mixture into silicone molds or small paper cups, filling each about 3/4 full.
Freeze:
Place the filled molds or cups on a freezer-safe tray. Freeze for at least 3–4 hours, or until completely firm.
Serve:
Remove sorbet cups from molds or peel away paper cups. For a beautiful presentation, garnish with fresh mint leaves and tiny watermelon balls.