The Heavy Motherfucker

It contains colors of all types and shapes. Flat rounds can't go in here. It accepts soft shapes. Only occasionally heavy. So if it was filled up with water, it would be heavy. I don't know what else could make something heavy. Some scales are tall and thin. Lauren, how's yours? It becomes heavier as the week progresses. Is it a trash can? No. A recyclable? A recyclables? No, I'm not sure. Okay, Paul has yours. Useless motherfucker.