Get Todd Mcfarlane's Autograph

I actually have Todd Mcfarlane’s autograph. I emailed Spawn.com’s customer service looking to get my spawn #1 signed. They responded by telling me to send my name and address to them via email and they would send an autographed photo(I assumed of spawn). It turns out they ment of Todd, which is cool but I’m not really that kind of fan. So, I hope to get his autograph on my Spawn #1 through perhaps attending some sort of event.