The pattern I'm going to use is the Mixed Stitch Stripey from Little Woollie. Oldest Girl loves blues, so I'm going to make a blanket in shades of blues, creams, greys, and maybe a random white (perhaps the bobbles?).
Basically, I'm going to make this
... look like this
(Photo courtesy of Little Woollie at http://littlewoollie.blogspot.com.au/ and tempyjo at http://gertieleigh.blogspot.co.uk/ )