I sewed a cushion with a flap using this great tutorial.
But actually the first step was sewing the doilies to the fabric, which was fiddly enough with a zig-zag stitch and my somewhat rusty sewing skills - only to discover when I was nearly done that I had sewed the doily to both sides of the fabric.
(that was about a third of the threads)
But then the rest went well.
The fabric was just enough and the flap looks nice:
And this year's poppies are already in stand-by position: