The original mod attaches its HappyMeal/IceCream behaviours to its own plugin GameObject instead of the item prefabs, never adds them as ItemToggle listeners, and never populates the gift list, so nothing fires. This is a separate Harmony patch that ships none of their code. It postfixes ItemToggle.ToggleItemLogic (the item-use path in both singleplayer and the ToggleItemRPC multiplayer route), matches the McDonald's item by name, and runs the intended effect through the game's own networked APIs: HealOther for the Big Mac, TesterUpgradeCommandRPC stat upgrades for the Happy Meal and Ice Cream, HurtOther for the Ice Cream's kill roll. Master-gated so it fires once, and each client self-applies to the target.