Over the last week or so, I've been working on a crochet project that is all about colour. The colour merging of the yarn does all the hard work, with very little "design" required.
I've used 2 strands of 8 ply yarn with a 6mm needle and a half double chain stitch, in a basic square formation. To merge the colours I've worked colour A & B in round 1, colour B & C in round 2, colour C & D in round 3 and so on until reaching the size required.
Position the cushion insert on an angle and wrap the crochet fabric like an envelope.
I've stitched the edges together using a basic single crochet stitch.
The end result gives 2 effects which I think works equally well.