Instead of being a "not bloody good enough GRRRR!" protest... I think it ought to be a "frankly rather underwhelmed" protest against the club in the spirit mentioned above
Flat caps could be doffed and a minute's silence held in honour of our fallen heroes who would've worked hard for their sixpence a week and been more than happy to get the bus home with the fans afterwards.
A kick about with an old school leather ball could be organised in the car park with ankle-brushing "shorts" and impressive
'taches obligatory to show the players how this football thing should be undertaken.
Tea and cakes (as mentioned above) would be served as a protest against the poor quality catering. "Paper cups? Not bloody likely old boy."
Old cupboards and button-tins could be raided to find the pre-decimal coins that everyone has laying around and these could be placed in front of the ticket office as a visual protest against the exorbitant ticket prices we now see.
And suits would be compulsory, as they should be for any self-respecting footballing gentleman who wishes to be taken seriously.
Old school rattles would also be encouraged to make some noise. As well as polite applause.
The whole point would be that it would be a protest asking for the club to change its ethos in terms of the importance of the football and fans and proving that we want to support the club, but in terms of what is being served up, we've had an awful long period of mediocrity.