Here's my "finished" proto-type and some observations on how I would do this with plaids because I really like working with plaids and striped fabrics.

As mentioned before, I sew large and cut down and have a lot of process photos but I think what I've taken away from this is, those setting triangles need to be small to let the plaids work, so maybe just a 2" or so triangle with 2" or so of blade, I'm not happy with the 1" finished I did.

I'd cut the blades as wide as I wanted for the consistent plaid, and then I'd trim down the triangle sub-units as shown in picture two and completely skip the center octagon, letting the plaids be fancy on their own. I think this could all be improvisational in terms of dealing with the plaid, and just trimmed down to the proper triangle and I would skip the pointy ends for speed of processing.

Yes, that's just a finished sized octagon of cut paper in the center.

And we all know that the best days are when squishies come in the mail, even if it ultimately could mean more work for us.

I agree with patricej and gay that it is a version of a lemoyne star . The corner setting squares have an additional small square in the inside corner.

The Quilt Block you are talking about is a cheater I have the same panel will try to post a better picture of it tomorrow or Monday.

thud. Really? A cheater panel?! I had serious insomnia last night and worked out how to make this, genius I said to self. Can I remember this morning? :)

I've done that - agonized over the design of a block I really loved, and after research discovered it was a cheater panel. It was similar with a lot of plaids, and something I think that is a big clue it's a cheater panel, it's made with plaids and they are fussy cut.

If you look closely, you will find the blocks centre right and top and bottom left are the same. Also the centre left and top and bottom right are the same. So the bottom left block shows the design better though it's not a whole block image.
http://www.touchedbycolor.com/

As Roseanna Danna would say -- never mind! Oh that picture is so much better and I see it so differently than is obvious from what I drew up. What ever was I seeing/thinking -- I was wondering if I was looking at the correct square or not.

Just a Lemoyne star with a corner inset into the corner, just as Gay drew. Easy peasy.

I did a lone star once with a plaid in "Easter" colors, white and lavender, green, pink, yellow. The center of the star was the fussy cut plaid and then rays of the solids.