Basically a stackable block system that would allow us to make cool giant signs and displays for our towers and things, you could have lots of different designs, some could just be colors, and others could have cool designs on them, like faces or pictures, or what have you. Then you could basically stack them as tall or as wide as you wanted until you ran out of space. I think it would be really cool as a new skillset, or maybe even just part of a new skillset, dedicated to decorating and making decorations.