I was looking for a banner saying "Wecome!" in a bunch of languages, but didn't find any that weren't for kids (I teach adult immigrants).
So I made this PDF (Letter Sized) and got printed out at Staples Canada (Business Stationary Store) on 65 lb index card stock (it ONLY scost $2 more than color laser!).There are 20 sheets in 5 different color backgrounds (4 of each).
Then I gave my students some brightly-colored markers and asked them to NEATLY write "Welcome" in their language, and then posted the cards along the ceiling in my room.
VERY cheerful and welcoming! ENJOY!