The Poster Cause Project as introduced The Poster Cause Exclusives, a print subscription "club" of sorts offering one super duper radical print to it's subscribers on a monthly basis. It costs $30 every three months (which means $120 for a year worth prints) and shipping is included.
Each month, you will receive one 12" x 18" Poster Cause Exclusives print. These exclusive prints will be shipped mid-month (on or around the 15th of each month), with what that exclusive print is announced on the 1st of each month. You can subscribe here.