Have a few leftover candy canes lying around?
Make some Mint Chocolate Bark.
Crush them and sprinkle in hot chocolate or on top of ice cream. Or make some homemade marshmallows and sprinkle the crushed candy canes on top before letting them set.
Or try this little treat. Roll a lemon on the counter to loosen the juice, then cut an an X in the top. Break the top and bottom off a candy cane and insert it in the hole. Now use it as a straw to get some surprisingly sweet lemon juice.