A few years ago, before I knew anything about quilting, I took my husband's favorite fleece blanket that had a hole in it, cut it into 6" squares and alternated it with 6" squares cut from our daughter's old baby clothes, some of them being stretch knit. Now, looking at it, I'd like to preserve it but not sure how long it will last as a keepsake. The rows are sewn together but not all the rows have been added to each other. Any ideas on how to save this without ripping them all apart?