Over 5000 T-Shirts were left at the tribute since 9/11/01. NYNY maintains the tribute while UNLV has taken in the collection for historical purposes. The shirts are rotated every six months.
If you like the 9/11 Tribute out front of the statue, head inside NYNY to Nine Fine Irishmen and see all the patches that have been assembled at the second floor bar. Fire, police, & military patches.