Don't bob for these apples--use them to hold tea light candles instead.
Create floating candles out of apples and tea lights.
Steps:
Fill a decorative pot with water and place the desired amount of apples in. Every apple will float differently, so note how they balance in water before marking tops with a dot.
Place a tea light over the dot, and trace around its circumference with a utility knife, inserting the knife vertically as deep as the tea light is tall.
Set aside the light, cut the circle into sections and scoop them out with a spoon.
Squeeze lemon juice onto cut surface to keep the apple from turning brown.
Insert a tea light, and replace apples in the pot.