Copyright T-Shirt

[Kevin Boergens]

Hello!

I joined the people working at the FSFE-Booth on this year's LinuxTag 
and have therefore a question:
I would like to wear a t-shirt showing a large copyright sign that is 
crossed out.
But I'm not sure if this contradicts the philosophy of the FSF.

Any advice welcome,
    Kevin

-- 
http://www.boergens.de
Please point out English grammar and voc mistakes to me. I'm still a learner.