I’ve got a handful. I’m looking at it two ways- things that can be used for a variety of purposes and things that have a certain number of uses before they’re used up. I thought of a potion-making game where ingredients can be combined in different ways to create potions with different effects. Or a game like BotW where your weapons degrade and eventually break- maybe every weapon has a unique effect or play style that you have to strategize when to use. But I guess it all depends on what the theme is.