Earlier this week, the Gun Mettle Cosmetic Case had been released, which contains a selection of new cosmetics. There's also a chance that the item you get from it may be either Strange, Unusual or even both.
Earlier today, I managed to unbox an Unusual hat, and that was the Rotation Sensation.
But what other items can be Unusual? Can all the items from the crate be Unusual, or only specific items from it?