Hey buddy, I suddenly have a strange idea. I want to create a prop in the game, such as a gift box or a lucky bag. Yes, when we open this prop, we can receive rewards inside. This prop can be placed in the backpack and can be opened if we want to, or left unopened if we don't want to. The rewards in this prop can be freely combined by the author. How can I achieve this?Unfortunately, I am a beginner and have a poor foundation in Ruby.