I would love to join one -- My avatar is a round robin border exchange that I did with quilters in 5 foreign countries. Some of the RRs were wall hangings, others were full size quilts. The full size quilts started with a center block and others added to the quilt. One RR was asymmetrical borders. -- only 2 sides added by each person. That was a memory quilt of my China trip.
The Imagination that we each added was lots of fun and over the year (we had 2 months to add and ship) we all became good friends.
Mim
PS I will look up pix and post them