For the rare occasion my laptop is leaving home I crafted a laptop bag from an old kids jacket. I closed the zipper and just cut off the lower part of the jacket and folded it so that the zipper was on the side. Then I sewed up all the open sides. I had to cut the zipper too and I fixed the end by wrapping a tread around it. To avoid having feathers from the filling flying all around, I sewed a seam near to a given seam in the jacket and cut in between those seams. There were some feathers flying around, but not to many. But since the given seam was not really tight and feathers tried to get out, I closed the ends with tape. I used the sleeves to make some pouches for cords, mouse and stuff.