This category is one I use to classify mugs that feature a man working with a machine, or a machine by itself. Many of these look very similar in terms of composition so I think it’s a logical category to have. This is one of my favorites because so many of these machines are shown in intricate detail to you point you would think you could build one yourself just from looking at the picture. In some cases I don’t even know what type of machine it is, so it’s simply list as “Machine”. If you can clear any of these up please don’t hesitate to contact me and tell me what it is.