Lay out the feather molds across a cutting board and set aside.
Measure the candy flavoring, tart, and sour enhancer into a small cup and set aside.
In a very small pot over medium-high heat, bring the sugar, water, and corn syrup to a boil.
Attach a candy thermometer.
If you are using a non-stick pot, you don't need to worry about stirring the sugar as it boils.
Boil until the temperature reaches 300 degrees, aka hard crack stage.
Quickly remove the hot sugar syrup from the heat and quickly whisk in the flavoring and food coloring.
Carefully drizzle the hot syrup into the molds one at a time. You will need to be quick and efficient.
Allow the sugar quills to cool before removing them from the molds.
Once cool, carefully peel the mold off the sugar quill suckers.
Package with candy packaging or, my favorite...in the bags you would use for candy-coated pretzel rods.