#12 for me.
The elephant is not a bad idea if you could figure out how to use it. But marty doesn't strike me as a cartoon mascot kinda guy, his online persona anyway.
If he did go with the elephant I doubt there would be any issues in the future.......
but anytime you are getting graphics designed (logo, website, etc) its a good idea, whether an online contest or your neighborhood graphics guy, to do a reverse image search
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CCwQFjAA&url=http%3A%2F%2Fwww.google.com%2Finsidesearch%2Ffeatures%2Fimages%2Fsearchbyimage.html&ei=2y7LUZjrAYSc8wSrzoCADQ&usg=AFQjCNELieTQZcdHOr-fQqG2rq5hUh-MIw&bvm=bv.48340889,d.eWU
http://www.tineye.com/