Hi, here's the simple construction I promised :-)
and here's what's left of the border fabric :
I think even the small dark blue stripes are rectangles and you can consider this as a big log-cabin block ;-)
The fabric of the wider log came through our ww-swap into my stash, it's from Kathy and I think it's just perfect . And now it's gone, sigh .
Still having fun with the RR