Yes, that Klingon. The Treky one.
There are fans of Star Trek who speak this language. Someone even is translating the Iliad into Klingon. No kidding - check out the Klingon Language Institute at: http://www.kli.org/
Here is my current translation:
jaj roj ché Dat
That translates as "May peace reign everywhere." Klingon would be concerned with peace reigning more places than just on earth, wouldn't they? I've written more about this on my blog Peace, Dude. The translation above came from words looked up at https://tradukka.com/translate/en/tlh
It also would be possible to get translations of other science fiction languages, like Vulcan. Witness the Vulcan Language Institute at: http://www.vli-online.org/vlif.htm
We suspect that a pole with such a language on it might get increased attention. It is the kind of thing that becomes known, remembered, and pointed out to visitors when a sense of humor is incorporated into a public monument. Imagine how it would keep the monument in the community's consciousness on a school campus.
Just a thought.
I update translations as times change and the way people express things change.