I'll buy a T shirt.
Simple statements are quick to read from a marketing standpoint.
May I suggest these:
theFlatEarthSociety.Org
Think for Yourself
theFlatEarthSociety.Org
It's OK to Think
theFlatEarthSociety.Org
Why Not?
And engage people on the the idea of free thought and acceptance of others thoughts and ideas.
I don't care if someone agrees with me or not.