On any camping expedition, solo or in a group, I love to krakatinnie with my lunch (not something I do at home, I must add).  I've found, however, when in a group, there will always be someone who looks over the top of their horn-rims with a frown and scowl on their face, when they hear the fzzzzpt of the tinnie being cracked.

Having seen an article on this device somewhere in the past I thought I'd do something similar.

Step 1.  Get a can of Pepsi Max and empty the contents on the ground.
Step 2.  With a sharp pair of scissors neatly cut the top and bottom out of the Pepsi can and split the side.  The can cuts like paper.
Step 3.  Have the Pepsi skin hidden in your esky and quietly slip it over your tin of XXXX Gold.
Step 4.  Make a big deal of cracking the can of "Pepsi" in front of all the wowsers before you slip it into your coolie.
Step 5.  Ensure your grandson is not on the trip to yell out at the top of his voice "why did you put your beer in the Pepsi tin Pop?"

After all that, I'd better open that tin of XXX Gold depicted in the presentation hee hee

Cheers

Seamus