We've heard of selling the shirt off your back, but what about a sweater vest?

Republican presidential candidate Rick Santorum, who is often seen on the campaign trail in his trademark (dorky) sweater vest, will sell it to anyone who donates $100 or more to his campaign by Wednesday.

"Perfect for demonstrating solidarity with true conservatives, this vest is a great way to show your support for Rick," says a blurb on the Santorum website.

The 100% cotton vest is made in the USA and comes in only one color — gray. But it's raking in the green. The site says demand is "extremely high," with a four-to-six week delivery.