Taken From
http://chadz.be/"""
Step 1.) Locate a coke machine like the one shown. Alot of schools probably have one, as it is one of cokes newest machines. Also check Malls and other popular places.
Notice when you put a dollar in the machine, and choose your drink, the conveyor belt will move to a row and your drink will drop on and dispense your frosty beverage into the green part of the machine.
Step 2.) Stick a dollar in the machine, and choose the drink you want. Before it dispenses your drink. put your hand up the green spot where the drink comes and push the plastic flap that the drink goes through into the green part. The drink will push for a few seconds and the conveyor will stop. The plastic flap did not open so the machine thinks its sold out.
Step 3.) Pick your 2nd drink. Choose a drink near the right side of the machine. It will then proceed to drop it on the conveyor. If you pick one on the left side of it, it will most likely get stuck
Now you know how to get two drinks for one. Have fun :-D
"""
I tried it today and it works! Now go out and get me a coke!
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