Auto Register a site in my self hosted install?

I have a self hosted Piwik install. I installed about 10 new sites a day. Registered each site in the dashboard is a bottleneck.

Is there a way I can get a piece of code installed on each of these new sites that “phones home” and registers itself in my Dashboard?

Bonus question: any way to obscure this so as not to leave a foot print in Google? ie each new site has unique Piwik code in some small way…