a rubber mallet?!
(with batting on it,to keep from leaving a mark on the fabric!)

i swear i have heard of it being done..

When you are stitching the diamond tips, you should stop 1/4" from
end, take a couple backstitches. Then I sew the center diamonds in groups of
2, then sew the 2 into group of four. Then carefully pin the center and sew
from center to one edge, and again from center to other outer edge.
There is an excellent book on making Lone Star quilts by Blanche Young, I
believe. An older book, but has been most helpful to me.

You are right, there was a topic about using this awhile back.

Just tell folks that it is the way you designed it. It's SUPPOSED to look like this. Lovely and nice placement of colors. If no one likes it, my address is...

Did all your seams go in the same direction? It lays a bit flatter when you do that, still little humps, smack it down with a covered hammer or wood mallet. I've never tried it, but hear it works.

your lone star is beautiful love your color combination sorry cant help with problem I have never made one

"Mountains" are caused by excess fabric in one form or another...determine what there's too much of and fix it...either by cutting down seam allowances or by taking a slightly larger seam allowance...

At a quilt show in Shipshewana this man had a little wooden hammer he made with a rubber tip on it, then he showed us an area where you could see that a seem was sort of standing up......he placed a piece of white cloth over the seam and hit it with the hammer........afterwards that seam was so flat you could no longer see it or feel it........I bet if you took a rubber mallet and did the same thing it might work to flatten all the seams....worth a try....couldn't hurt it as long as you have fabric in between. Hope this helps

I just wanted to add to the compliments -- It sure is beautiful!

When I have that many seams coming together in a center, I press them all open. :D:D:D