I got a xxl mans t-shirt, and a large s-hirt fabric shawl, and cut it into strips
for the white ruffles cut narrow strips then you need to ruffle them, i did this by, pushing the fabric under the presser foot of the sewing machine faster than it was stitching this gathers the fabric.
when you have made enough of the white strips, then make the main stripes in a different colour, these need to be wider for the main cross, then narrow like the white strips for the other stripes.
i used brown coloured t shirt fabric for the main part of the union jack,
then lay all it out in the union jack pattern, and then cut the pillow fabric to fit it, i used burlap
next you will need pins
first pin the main stripes to the pillow piece and sew it with the machine
then pin on the white stripes, making sure that the main stripes are not in the way.
then use the sewing machine again to stitch them on to the burlap
then cut the back piece for the pillow and sew it on and turn the right way and its finished. be prepaired to spare some time for this project, i dont no how, but it took me 3 hours, i have made alot more detailed things in less time lol i must of been in slow mode to be fair i did start it late in the evening. but it was worth it.