I've been collecting charm packs and was curious about the differences in the packs I recieved. Most of the packs came with two patches of the same fabric which was nice to have. But what I found curious was the packs that came with several of the same fabric pattern pattern, just in different color waves, which was not so nice to have. Some of the sites showed what fabrics were in the pack, but not all sites did this, so it was hard to see what fabrics were actually in the pack. It is the usual practice for charm packs to have the same design, just in different color waves, in the pack? Or is this something just certain shops do?