As a redux, these are the Lilac Mittens, designed by Heather Desserud, available as a free download on Ravelry. The yarn is Sisu sock yarn and the mittens were worked on 2.5 mm circulars. It took me a lot longer to finish them than it should have taken, but, hey, they're done! And I love them! And they're machine washable! Does it get any better than that?
I got them done just in time for the warmer weather, too. How's that for timing? (And yes, I'm being sarcastic... the weather has warmed up and it's rain, rain, rain in the forecast... not really mitten weather.)
So, having freed up a circular, I just had to cast on something, right?