Step 1

In a mixing glass, combine Big Blue cream soda, vodka, and ginger ale (or lemon-lime soda). Gently stir.

Step 2

Pour mixture into your cocktail glass.

Step 3

Gently add your giant ice cube to the drink so that it does not submerse. Be sure to point the side with the concave indentation upwards to form a small well.

Step 4

Pour grenadine into the ice cube's well to float the fake "blood."

Step 5

Garnish with a maraschino cherry on a pick and enjoy!