Buy a customizable, self-inking stamper:

http://www.amazon.com/gp/product/B00006IB7K/ref=as_li_ss_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B00006IB7K&linkCode=as2&tag=httpwwwchanco-20

And put various messages on it, such as

Stay informed! Visit www.cathinfo.com

...and other great messages which I'm sure you can think up. Then you can stamp this on bulletins, etc. when no one is looking.

It's self-contained and clean, so you can keep it in your pocket until you're ready to "strike" when the time is right (no one around). And you can change the message at any time, so you're not wasting your money. You can use it as a return address stamp or something once this SSPX crisis is over.

At my chapel, the toilet paper comes individually wrapped. You could stamp messages on the outside wrapper. Be creative!

My only standard is that I won't grafitti anything. Posters, even 8x11 sheets of paper with notices I consider off-limits. I would only stamp things that are "temporary" or disposable, like the weekly bulletins.

You could also print out various messages on plain copy paper and leave them here and there. We need to get the word out, in particular we need to show how HOLLOW the accordista arguments are ("we must obey", "unity above all else", "rumors", the nature of the Internet, etc.)