Let the candies infuse for 24 to 48 hours.
Give the bottles an occasional shake so that the flavor is fully mixed.
Strain the mixture so that there are no candy particles in the liquid.
Refrigerate overnight.
The Dishwasher Bottle Method
Take five 200 gram bags of Skittles and separate by flavor.
With five 700 mL bottles, pour 300 mL of vodka into each bottle, then add the Skittles (one flavor per bottle).
Put the bottles in your dishwasher and run an intensive cycle.
Shake the bottles at least twice throughout the dishwashing cycle.