1. Cut one slice off of green apple for garnish. Peel and slice the remainder of the apple into chunks and juice or blend. Pour liquid through a fine mesh strainer into another container. Discard of apple solids and set juice aside.
2. Fill a cocktail shaker full of ice and add strained apple juice, vodka, and simple syrup. Shake well and strain into a chilled martini glass.
3. Garnish with an apple slice or fresh raspberries.
4. Fill to the top with club soda and garnish with a blackberry and lemon wedge