Blend the fresh watermelon in a food processor until smooth for about 1-2 minutes.

Strain the blended watermelon juice using a fine mesh sieve, ensuring you have 2 cups of smooth juice.

In a saucepan, heat half of the juice and let gelatin bloom in the other half for 5-10 minutes.

Return the bloomed gelatin to the heated juice, stirring gently on low heat until dissolved.

Mix in lemon juice and honey (if desired) before carefully pouring into molds.

Refrigerate for at least 2 hours, or until firm to touch.

Cut into desired shapes and store in an airtight container in the refrigerator.