I could be wrong but from the picture it looks like you are using only one layer of fabric.
The fleece throws I made were two layers of coordinating fabric and tying the strips held both pieces together. I guess you could make a bigger hole and pull them both through.

i can almost see two layers but looks like the same print, not two different ones. still looks easy peasy!

How do you work the corners?

Great idea! I'll file this in my "must remember" bank!

I have done this, but I don't use a seam ripper. I use a small rotary cutter.

I think i answered my own question.You cut out the corners,like 4 inches then cut the strips the same length.

I always use two layers of fleece for the tied blankets. I tie tight double knots and none have come untied and DGD washes her blanket at least once a month. I am making three for gift this year. I use two yards of 60" wide no pile fleece for top and back and make 5" cuts for the strips. I machine sew around each corner for stability.

Great tips really liked the idea on the scarf.

It is just one layer of fleece. I've never made a two layer fleece blanket but I think you could use the same method on two layers successfully.

It is only one layer.