i don't do swaps. i haven't enough time to do the things i want to do, and while i think it would be fun, i'd be afraid i couldn't meet another's standards.
my ideal "swap" would be a random one, with size only defined. i would love to make a quilt of random quilt squares by random people, with their colors, their favorites. the only thing i'd require would be a size (probably 10 or 12 inch, so they could be trimmed to be uniform)--and the other requirement would be their name.date on it, perhaps in pigma marker, just so i could look at it later, and appreciate all the hands, hearts, colors, and ideas that went into it, by name.
if i ever get to retire, i might just suggest such a swap. i would love the free exchange of colors and designs!