The Blackberry Fence Hopper

Add the lemon juice, honey and blackberry to the shaker. Muddle the ingredients in the bottom of the shaker until thoroughly crushed. Add the vodka and ice to above the level of the liquid and shake vigorously for 10 seconds. Strain the mixture into tumblers containing large cubes of ice, top with seltzer and garnish with remaining blackberries and lemon slices.