You're right on the etching... but if it were necessary for the illusion, I think I'd do it. I really wouldn't think those windows would break often.

but yes, I think lights/lasers would be better.

They might be able to do two versions. One, a 'low level' light that would be as much shadows as anything else... on every night... make a cool fly-over and picture. The other might be more like the Centennial, used for intros and perhaps scores?

Maybe someone could design an Owl (slightly oversized, but not comical) drone to fly around before and after games or after scores with an owl screech? Could also be used at other events....

I also imagine a chant of GOOOOOOOOOOWL!! when the Futballers score.

Gotta get more creative with the event planning