Cor, there's more to this overlocking business than just finishing seams!
OK, so it won't win any prizes, but at less than 2 days (including time taken to make dinners, do laundry, walk dogs, blah-di-blah) it's by far the quickest cover I've ever made.
I then used a 10cm border in matching fabric. I backed it with an old duvet cover, attaching between border and patchwork. I roll hemmed the border, and underneath (on the backing piece) overlocked longer strips of co-ordinating fabric. Easy peasy.
The fabric is Folklore by Moda (2 jelly rolls made enough patches for a King size throw).
Unfortunately, the colours aren't exactly right for this time of year (because I've been putting this off for ages) so I'll have to make another for Autumn.
* My rotary cutter and I have been eyeing each other nervously for about 18 months. I used it once and decided I didn't like it. I have now made friends with it after realising that, as with most things, it's all down to having the right equipment to use with it and getting the right technique. It would have taken me forever to do this quilt without it.