I joined a monthly quilt block club. They send me four different fabrics each month and I have to make a 12 1/2 inch block from these four fabrics. Rules are: use all four fabrics and block needs to be 12 1/2 inch.There are 12 people in this club and each month a different person picks four fabrics and everyone makes a block.Then you receive 12 blocks once a year. The cost for each player is $5.00 a month.My mom did it last year she really enjoyed it .