I've just begun to browse the site, and right away found one to support: the City Reliquary, a community museum in Williamsburg, Brooklyn, that preserves and displays all sorts of New York City artifacts--from geological core samples to paint chips from the L train.
If you're among the next 19 backers to pledge $5 or more, they'll send you an Authentic DSNY Street Sweeper Bristle. $50 gets you a membership.
To find this and other projects you might want to back, go to
You can visit the City Reliquary Saturday or Sunday from noon till 6 or Thursday 7-10 pm. See: