This is how I did it.
You’ll need a spool of elastic thread.
and an empty bobbin.
Loosely wrap the elastic thread around your bobbin until it is full.
Then place it in you machine just like you normally would. Set your stich length to the longest stich and get sewing.
Make sure you have your curtain right side up while you sew. Don’t forget to go back and forth at the beginning and the end.
Keep sewing right side up until you have the desired width.
I used both of my hands to smooth out the un-shirred part and to help guide it through the machine.
My original plan was to shirr the whole curtain (actually my original plan was to to something a little different) but I liked it like this a little better. I still want to try the original plan for something though so stay tuned.
So in the end I used one really long curtain. I cut it in half and used both ends to fill up the window. I could have used half of it and shirred less rows and it would have worked too.LIKE THIS
I also thought about making a valence.LIKE THIS (kind of, I didn’t make the valence so I didn’t finish it off)
But since I had the curtain I used all of itLIKE THIS