Ah, I thought I'd have to do a lot more typing. Damn.
OK. I'll go through how to do it, that'll give you an idea of what it is.
You will need:
1/ A Penguin bar (or twelve)
2/ A hot beverage. I find tea works best, but in my Freshers Flu-addled state of madness, I managed it with a max strength Lemsip. It was suprisingly nice...
What to do:
1/ Make hot beverage
2/ Unwrap the Penguin bar completely. Bite a little off two opposite corners (so bite off one corner, then the corner diagonally opposite to that)
3/ Dip one corner into the drink, then sip up some tea through the Penguin bar from the other corner, like a straw.
4/ As soon as you start to actually sip up the tea, tip your head sideways close to the cup and throw the semi melted mess into your mouth before it falls apart. Enjoy.
You'll probably get it wrong the frist time and end up with a disintergrated Penguin bar in a ruined cup of tea, but persist. It sounds a bit disgusting and pointless, but believe me, it's chuffing amazing. You'll thank me for it when you've got the technique down!
I went through 22 Penguin bars in four days doing this. Be warned, it's more addictive than crack.