As for my random idea...
It went well.
I have a new mat. What I can't figure out is why no one wanted
to buy the old one at my yard sale.
As for the block, instead of making 13,
I decided to make a larger quilt of 24.
I still love them.
So I sewed all the old jeans together.
Then I went to my quilting neighbor, I hope you have one too,
and she assured me that I needed to put it on the back of the watermelon quilt.
I don't know what I would do without her.