Boil water, then pour over teabags in heat safe pitcher (I use a 4-cup glass Pyrex measuring cup). Steep for 15 minutes, then cool to room temperature. Remove and discard teabags.Place watermelon cubes and strawberries in a blender and blend well. Strain into a glass pitcher. Add cooled tea. Add a few mint leaves, stir gently and place in refrigerator. Chill for at least 2 hours or up to overnight.Serve over ice with a garnish of fresh mint leaves, a fresh strawberry and a slice of fresh watermelon.