I have never used Magic Decor but I can tell you what I did with my dyi version of cake lace that became a little dry. I placed on top of it a barely damp paper towel. It was just for a short period of time but it did the trick. Did you wrap it in plastic wrap after you made? I made some in September and just realized I still had it in my china cabinet. Went to check it and it has not dried out.
