Does anyone know a way to craft the world boss vestiges across any map?

I have been wanting to make a museum of sorts, somewhere to display all of the larger trophies but what is irritating me is that there are so many hard locked trophies such as the sandworm trophy when playing on promethius. Does anyone know of a work around? I have completed all required missions/research, its just that I haven't found a work around to getting any of the world boss vestiges onto my map. I hope this makes sense and thank you for any help!