I'm working on a set of various utility objects that can be pieced together modularly. So far I have created a variety of pipe shapes and extra pipe accessories including flanges and valves. I've also created a blueprint that lets the designer create their own pipe shapes using splines. The pipes use a material I made that projects the textures on 3 axis, so the textures are completely seamless no matter the orientation. (There is more texture variation horizontally than vertically so I will probably want to make a separate material for pipes that are more vertical and hide the seams between the two types with flanges) I would like to make some kind of sci-fi environment in UE4 with my assets at a later date.