Our pizza box swap was so much fun the last 2 years that we're doing it again!
The way it works is you will get a pizza box to put your fabric choices in. Then you turn your pizza box in, and you won't see it again for 9 months. Every month, you will be assigned someone else's box, and you will make them a 12.5" block using only their fabrics. After 9 months, you get to see the 9 blocks made for you with your fabrics.