this is Neon lighting effect in blender
Thank you for sharing your blend 71349 Neon RJ.
I've been examining it to see how you did it and would like to attempt something similar.
What I would like to know is why it is marked as fan art.
Are you asking, what is the meaning of fan art? If so, it is art based on someone else's trademarked design. For example, a model of the McDonald's "golden arches" sign outside their burger restaurants would be fan art. http://en.wikipedia.org/wiki/Golden_arches
good