By placing Skittles candies in a bottle of vodka for a day or two you can make a tasty, sugary infusion that's a perfect change of pace.

[edit] Steps

Buy a handle of vodka and a large bag of Skittles.
Separate the colors of Skittles that you want to flavor the vodka with. Many people choose to leave out the green (Lime)and purple (Grape), as they can make for a weird taste combination or a less than appealing color for the final product.
Remove the plastic pour guard in the bottle of vodka.
Pour some of the vodka into a glass in order to make room in the bottle for the candy.
Place the Skittles (20-25 per 350 mL) that you have picked out into the bottle, and let it sit for a day or two.
Strain out the Skittles using a filter or a clean t-shirt.
Enjoy in moderation.

[edit] Tips

If you're not one for mixing flavors, buy five bottles of vodka and five bags of Skittles. Then separate the candy and use one flavor for each bottle.