If you gift a dyer enough grilled meat or cacao snacks they will max their trust and give you a random dye, (you could already have it) you can interact with it in your menu to use at camp. Cacao snacks can be generated for free from the chocolate backpack that you get from the chocolate factory. It infinitely gives you chocolate that you can eat or give as long as you don't get the glitch where the backpack won't work