I'm very pleased to be able to tell you that all three quilts have been finished: two were given to the little girls last Sunday; the baby boy's is being given to his Daddy today or Sunday. I am grateful for all your suggestions. What I did in the end were: Older girl - Trip around the world, in pinks, lilac and a bit of blue. 44" square Younger girl - Warm wishes, in pink and lilac with burgundy and palest grey for the stripey blocks. 42" square Baby boy - Carpenter's Star, in blues and yellows.
The girls were delighted, I'm happy to say; and they began playing with them straight away: wrapping themselves up in them, making a bed on the floor and then up to their bedroom! Mum was pleased to hear they were washable. So, I didn't have to say 'use them, don't keep them for best' >g