I was hoping for a campaign of defacing coins like the suffragettes did. But no-one uses coins any more I suppose, and defacing a card reader doesn't really have the same effect...
I vaguely recall that there was such a campaign, or a suggestion of one, but on 'paper' money. I can't find any record of it. It may have been around the time of the last election, when posters were talking about the best way to spoil their ballots.
Perhaps it never took off because we are generally law-abiding and take issue with MRAs messing with the law to suit their desires.