Ok. It might not hurt to try a rat. I’ve had cases where they won’t eat the mouse, but a rat gets them back on food. If it goes much longer I’d try a live mouse or rat. I know some people ate nervous to feed live, but as long as you either watch or check in on them frequently everything will be fine. If you try live and that doesn’t work try a live asf or small gerbil/hamster. Ball pythons go crazy over those and will most likely eat it right away. In regards to fake plants i get a lot of mine from Walmart or other craft stores. Make sure the plant doesn’t have any small parts that could fall off. I soak mine in water as hot as I can get it before using. If it falls apart at all or deteriorate it goes straight in the trash. Also make sure there are no wires or anything sharp exposed. Also check amazon, they have some pretty reasonably priced reptile safe plants.