So, you wanna make a cold armadillo. You'll need the following to make a punch-bowl sized version.
One can Minute Maid Original Orange Juice Concentrate; thawed
One lunch-box sized container of Hawaiian Punch
Two liter bottle of Sprite - 7UP won't work, it makes it taste horrible.
Hey. What do you do with all of this strange stuff? Make a Cold Armadillo(tm), of course. Make sure you tell us how it worked out, and how you liked it. We REALLY liked it. Of course, we're teenagers and were really hyper at the time. Anyhow.
Put the orange juice concentrate in a large punch bowl. Mixing it in your hands doesn't work -- trust us. We know these things.
Add some Hawaiian Punch -- slowly. Don't add too much, now. Make sure that this tastes good. If it tastes like crap, you messed up. Do NOT keep drinking it if it tastes like crap. You have three options if it tastes like crap. One: Throw it out. Two: Feed it to your dogs. Three: Invite somebody that you don't like over, and forcefeed it to them.
Add Sprite until it is carbonated to your liking. Don't add too much or you'll have to break out another thing of Minute Maid Orange Juice Concentrate and fix it. If it tastes like crap, you messed up. (See last paragraph for instructions on what to do with it if it tastes like crap.) Anyhow. If you did it right, you should get some orangish foamy stuff at the top, and it won't taste like crap. It'll taste gooooood. Drink 'til you're sick of it. Then finish it off and have some more.
GOOD LUCK! Don't forget to let us know how it went.