I am so sorry I never came across any decoration of Islamic theme tree..because as far as I believe there is no such concept in Islam...anyways if you are seriously on this..you could probably help the poor people, Charity for students or families who can't effort to buy a book!!! I guess this idea would make you feel more proud and happy. Puttig smiles on faces is nothing but the Chrismtas or Eid celebration. I don't have idea about people in Qatar, yeah I had been their for short time, but doesn't know much about the poority level in DOha?? Any thoughts????