I would then put a stitch afterwards so then it's tightly put together and it won't come apart but it's a neat idea. Much easier then having to do it separately.
Loved it..I'm trying to use a custom cushion for my doggy...bed...How much more should I add to ensure proper fit and can a zipper also be glued on for washing purposes,?
Hot glue doesn't hold everything. The moment those pillows experience any pressure, the glue will start to come apart. Just stick to sewing, it's better and a lot stronger than using glue.