If you're following the Texas Poet Laureate NOW! effort,they've now got t-shirts, coffee-mugs and mouse pads available to raise money for the cause. If you’re interested in seeing those goodies for some of other hosted sites, let us know and we'll see if we can talk them into it.
Along similar lines, if you’re in a free software project, there’s a website that sells t-shirts, hats and other goodies to raise money for free software project. CopyLeft has donated well over $50,000 dollars to about a dozen free software projects over the last year from the sales of various goodies.