The Madonna Project 2007 calendars (along with other wares) are still on sale. Somerville residents can grab their very own calendar for a discount and free delivery by the creator for a limited time. It's two bucks more plus shipping for people living outside of Somerville to get their own calendar featuring religious icons in Somerville lawns. Bostonist caught a glimpse of a billboard while heading back into Boston from the South Shore this weekend......