What specifically had you in mind? I wouldn't wish to miss something important. Generally, the only times I've seen atheists "throw around" 'proof', supposed or otherwise, it's been in response to some theist assertion or other.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'
