For the simple syrup: In a saucepan bring 2 cups sugar and 1 cup water to a boil, stirring, and boil until sugar is completely dissolved. Cool syrup.
For the Raisin-oni: Combine chocolate and simple syrup in a heat-proof bowl. Microwave for 1 minute 15 seconds, remove from microwave and stir to smooth consistency. Add raisins and 1 tablespoon water to the bowl and mix to completely cover all raisins. Using a spoon or small ice-cream scoop, scoop out raisins into clusters onto a waxed paper lined sheet pan. Once all RAISIN-ONI are formed, cover them with a sheet of waxed paper and plastic wrap, place in refrigerator and chill until firm.