Before you start cooking, place desired molds on a cookie sheet and/or parchment paper and place sucker sticks part way in the mold so the candy will hold it in place.
In a heavy, 2-quart sauce pan, mix together sugar, corn syrup and water. Stir over medium heat until sugar dissolves.
Insert candy thermometer, making sure it does not touch the bottom of the pan. Bring mixture to a boil without stirring.
Continue to cook the syrup, without stirring, until the temperature reaches 260ºF; add drops of food coloring until it reaches the desired color. Do not stir; boiling action will incorporate color into syrup.
Remove from heat when the syrup reaches 300°F (temperature will continue rising). After boiling action has ceased, add flavor and stir. USE CAUTION WHEN ADDING FLAVORING TO AVOID RISING STEAM.
Carefully pour syrup into prepared molds. Do not refrigerate.
Cool completely. When the molds feel cool to touch and hardened then you can gently remove them from the mold. Store in airtight containers between waxed paper or place in sucker bags and secure with twist ties/ribbon. Store hard candy in a cool, dry place. Do not refrigerate.
Tip: For easy clean-up, simply soak your pot and utensils in hot water until the hardened candy is dissolved.