Newbie question. Please delete if this is not the right forum. I am helping my 11 years old son enhance his simple text-based IOS App. He wants to add a Glass Jar to his App. The goal is to use it to add ideas written on a virtual post-it, into the Glass Jar. He wants to do the visual implementation. I have listed the steps we are looking for guidance. Requesting help with the following questions. Is it better to use an image of a glass jar or create it as custom graphics? An example image is attached. If custom graphics, any pointers? If an image, how to add the effect that ideas are accumulating in the jar.