What can be TerraCycled in this category? Answer: any brand and size of polystyrene #6 cups What CANNOT be TerraCycled in this category? Answer: foam cups, any # cup other can #6 What does this waste get used for? Our cups are made into recycled plastic products that can themselves be recycled into more useful items! ps: Did you notice the new TerraCycle Tuesday logo on the right column of this page? Click on it to see all TerraCycle Tuesday posts!