I think its almost on the right lines, but the tux part is too much.

What you want is one of those trendy lifestyle type adverts, show a young trendy person going about their daily trendy lifestyle, interacting with various things along the way, phone, laptop, ATM, etc etc. Then go back and point out that every single thing they used was running Linux.

There are a number of successful brand advertisments like this already, that in essence are telling you "you too can have a cool life like this, and product/company $foo is what makes it happen"

If its voluntary self certification that he is suggesting, then he is over a decade late. I was adding ICRA content ratings to my websites back as early at 1997. It's the end users choice then if they want to set their filtering software to block it or not.

Oh, the other "problem" is that it is manual transmission. Slushboxes suck up fuel economy like most people don't even believe.

Technology has moved on you know, Semi-Auto boxes, its basically a manual box with a computer controlled clutch and shift mechanism, the manufacturers claim that in full-auto mode these get BETTER fuel economy than the equivalent manual in average driving conditions, as the computer wont run the engine at higher revs/gear combos than is actually needed.

Having driven a manual all my life i find myself now just leaving this in full auto mode, its right most of the time, and when i know something it cant anticipate, like a hill coming, i just flap the appropriate paddle and it changes gear at my request and carries on. If it ticks you off (i thought it would but it never has) you can just switch to manual mode and change gear up/down yourself.