I use to glue stiff paper on clothes tissue patterns when I was young. Now I fuse interfacing to the tissue pattern pieces. I hate tissue patterns anyway. The best project patterns include the pattern printed on freezer paper. You iron the pattern to the fabric and cut. The pieces can be reused many times. I gladly pay more for freezer paper patterns. I haven't seen a pattern printed on freezer paper in some years though. I guess it would make the pattern too expensive compared to the no pattern patterns.