I was really lucky to have VIP Membership to the Autry Museum because in July of 2005 they had the "Once Upon A Time In Italy... The Westerns of Sergio Leone" exhibit. I was absolutely amazing. I went on opening night got to see amazing exhibits; documentaries, props, amazing posters, costumes and I got my book "Once Upon a Time in Italy" signed by Sir Christopher Frayling. YAY! Then later at night there was a battle; giant puppets of Blondie, Tuco and Angel Eyes (if I find the pictures I will post them) doing the mexican standoff scene. So cool.
The next day I was able to see Alessandro Alessandroni (who did the whistling in a number of Leone's movies like Fistful, For a Few, and Once Upon a Time in the West) perform live at the Autry. I think I have a video somewhere which I'll try to find and link as well.
Sorry to brag but I'm still excited I was able to attend.