Thanks for the feedback everyone! I am a competent but not expert sewer - they won't fall apart but I wouldn't be able to sew a complicated dress or anything (I can't do buttons, zips or darts, so that really limits it!). I'll try and choose fabric that will suit each child and a coordinating tee, might have to practice my applique a bit before I can manage letters!

Ok, I have 9-12 pairs of PJs to make between now and Christmas!