A Magic Potion Bottle with Cork done in Blender 3.1 Materials are procedural. An EXR file (sorurce: https://polyhaven.com/a/studio_small_08) is included. Connect it to the world objects 'environmental texture' node if it is not connected due to file location issues. Environmental texture provides the lighting for the scene.
Cork and Potion are parented to Flask so that they can be animated.