I've done three and I've taken classes with then all. I've only used reproduction material. I did not always use the material supplied in class because I really enjoy using alot of colors so I did a search for the reproduction and now I have a good stash so I just started on a new one and will probably make one block with the shops material and one with mine choice. We had one lady make one using all Christmas fabric; it was pretty wild but all of her grandchildren fought over who would get it. It's up to the individual; if it's important to use all reproduction then do so if not make it to suit yourself or the one who will get it in the end.