here's a more interesting Tutorial to make Juggernog from COD BO2

You Need:
4 J2O Bottles (EMPTY)
the Labels (provided)
Red, Green, Blue and Brown Enamel Paint and Food Colouring.
Disinfectant
Access to Hot Water
A Towel

WARNING: THESE MOULD AFTER A WEEK. KEEP IN SUNLIGHT AND KEEP DRY

Step 1: The Bottle

Start by running one of your 4 Bottles under Hot Water, Then rubbing the Bottle's Stickers with the Towel. the Friction between them will Remove the Sticker, the Hot Water will loosen up the adhesive on the sticker. Then rub it clean with the Towel.
it should look like this.

Step 2: The Top

Now depending on the Perk-A-Cola that you're Making.
Take the bottle tops and lay them on Newspaper
shake up and open up your selected paint colour.
now paint the top that colour and leave it to dry for 24 hours.

Step 3: The Liquids

now the liquids are made by
50% water
50% food colouring
JUGGERNOG: RED COLOURING
SPEED COLA: GREEN COLOURING
QUICK REVIVE: BLUE COLOURING
DOUBLE TAP ROOT BEER: BROWN COLOURING

Pour in enough Food Colouring to cover the bottom of the bottle and a just a little bit more. (Of whatever Perk you've Chosen to do)
I show the Process taken in Speed Cola.
Once the Food Colouring is in, carefully fill the bottle with water until it's a quarter of the way up the neck of the Bottle.

Step 4: Sticking Down the Labels.

take some PVA glue and just gently brush it around the edge of your labels and stick it down to the area it's needed in.
A dab on the Top Labels but the top is optional.
let them stick down properly, slap your lid on your Perk-A-Colas and you're done!