Here is the Ikat:
and here is the mitered pillow:
Mitered pillow I defy you!
The person who made the original started with striped fabric, but I decided I needed a real headache and made my own stripes. Whatever, I am happy with the results, and happy that I used the skirt fabric for something useful.
I found this tutorial for making more graphic mitered pillows. Take a look if you think you might want to make one, or at least the illusion of mitered corners without all the work.