So, this bag could actually have some lore that can be included in the game, here it is: Back in the 1980s, the plastic bags used to dominate what is nowadays the Paper Bag Kingdom, there were a lot of them, and they had quite a happy life. But everything changed when the paper bags came and took over the kingdom. Because the plastic bags were, well, plastic, their army collapsed and soon enough, the paper bags took over the Plastic Province which is why this game is about paper bags. But somewhere in an underground bunker, there is one last plastic bag, and that plastic bag is the one that is on this project right now.
Note: The design might not be perfect, so if you can make it fit your style I would highly appreciate that! Credit to iminyourwalls293 for making an awesome find the game ;)