Persian tiles - starting

I'm having a good start on the Persian tile blanket. (looks a little bit like Delft Blue pottery too I think)
First 6 blocks (all different patterns) done once.
I also decided on a method to put them together...knitting the edge stitches together with wrong side facing and then cast off.
I think I'll finish it all off by sewing fabric against the back and then stitching it through around each block (like a quilt). That way the yarn loops on the back won't get snagged and it will have a very nice completed look. 
Of course I'll post a picture when it's all done.