You need a candy thermometer, a lollipop mold, flavoring, and hard candy coloring (different than regular food coloring). And then you're good to go!
2 C sugar
3/4 C water
2/3 C light corn syrup
1 t flavoring
1/2 t coloring
Mix together and cook, over medium heat, until the sugar is dissolved (about four minutes). Increase heat to high and boil until it reaches 300 degrees (about eight minutes). Add the flavoring and coloring. Pour into the molds (I like to put mine in the fridge for 15-20 minutes beforehand), add lollipop sticks, and let set (30-45 minutes).
