Chill six shot glasses in the freezer for at least 10 minutes.

Measure and label all ingredients, placing them in the order you will pour: grenadine, cranberry juice, orange liqueur, mixture of strawberry schnapps and pineapple juice, then vodka with lime juice.

Pour 0.75 ounces of grenadine syrup into the bottom of each shot glass evenly, about 0.125 ounces per glass.

Using the back of a bar spoon, slowly layer 1.5 ounces of cranberry juice over the grenadine, pouring about 0.25 ounces per glass.

Layer 3 ounces of orange liqueur (0.5 ounces per glass) over the cranberry juice using the bar spoon.

Combine 3 ounces strawberry schnapps with 3 ounces pineapple juice, then gently layer this mixture (0.5 ounces each per glass) over the orange liqueur.

Mix 9 ounces vodka with 1.5 ounces fresh lime juice, then carefully layer this final mixture (1.5 ounces per glass) over the previous layer to finish.

Serve immediately while layers are distinct and glasses are chilled.