Jennifer Aniston Gives the Shirt Off Her Back to Fight Cancer

Ever wanted to own a T-shirt autographed by Jennifer Aniston?


Well now’s your chance!

OK! Magazine reports that Aniston—along with celebs such as Jack Black, Scarlett Johansson and Kirsten Dunst—are participating in a scavenger hunt to raise funds for Stand Up to Cancer.

The charity organization has launched its Twitterhunt to celebrate its first anniversary, and has hidden T-shirts signed by the stars in 20 cities throughout the country. Hints—some of them from the celebs themselves—are being tweeted out to participants to help them find the booty.

The contest began yesterday and will run until all of the shirts are found, so you’d better get to it.

Happy hunting!