I participated in exactly one swap with a group of quilters who used vintage machines. The design chosen was very forgiving if you needed to trim the blocks to a consistent size. That was a good thing since I probably got two or three of the twelve blocks that met the requested size! Much worse was that it was supposed to be white and a solid primary color - red, green, blue, etc. This was important for the design. I got prints and pastels. It completely turned me off swaps. The blocks are in a storage box now, and they won’t ever get used by me. I ought to take them to a guild meeting and see if anyone can make a baby quilt from them.