Please note that to make something official, it has to be passed through the Python Software Foundation, which holds the intellectual property for Python and is responsible for trademarks associated with the language.
If you're serious about doing this, you may want to email "psf at python dot org" to get information from the board of directors (I'm one of them, BTW, but I can't speak for the whole group). It would be nice to have a single strongly identifiable visual trademark for Python. There are many icons/logos that people have invented but none that's "official" and having many tends to dilute the ability to build a strong well-known visual trademark. - Stephan -- http://mail.python.org/mailman/listinfo/python-list