I travel a bit and not always through the nicest of places. I have been using a gun case that looks just like a golf club shipping case. Nobody pays me a bit of attention when I wheel it across a hotel lobby or car park. It has been wheeled discretely through hotels where a recognizable gun case might not be a welcome sight. When I get to my room it is chained to some relatively unmovable object.
I use a Tuffpak as a travel case. it is fairly expensive but seemingly indestructible. The guns go into soft cases inside the travel case. There are other golf club cases that cost much less that would work well for hotel rooms. You might be able to borrow a case from a friend.