Sunday morning chores were delayed.
The blanket is not as large as it ought to be--clearly, I ran out of time (or, more truthfully, did not work hard enough on it these past few weeks)--but it will work for a changing pad or a comfort blankie.
It is all cotton and some linen--a mixture of fibers from stash, including some cream Crystal Palace cotton chenille to make it soft. So it is machine washable, pretty strong and should get softer with repeated washing.
The design is based on Barbara Walker's seamless square concentric-strips in mosaics (found in A Fourth Treasury of Knitting Patterns), and I used Elizabeth Zimmermann's garter stitch-border bind-off (from Knitter's Almanac) in fuchsia--which doesn't look as abrupt in real life as it does in the picture but which sounds like it will be quicker to execute than it actually is...