Yeah, sure! Just use textured 3d models like they do in the source engine or even in fpscreator.
Now, all of these are my work and I made these quite some time ago... so I did know a lot less what I was doing than I do now.
These are also made in FPSCreator.
If you google "fake volumetric light" you find stuff from people that are far more experienced than I am and a bunch of tutorials on how its done.
These are basically just textured meshes without collision. Thats really it. If you know what you are doing, its hard to tell the difference.
-Wolf
