One of my clients is a fairly prolific comic book artist. He went to a con in Germany a while back and did some of his best sales to date. I'd be down to attend said con...
Actually, the only thing that wasn't stolen at the Louvre's Apollo Gallery is the Regent Diamond, figure no one would take it because something to do with a curse.
I've also found that the two thieves were leaving for Algeria, thanks of a trace of DNA evidence recovered from a helmet and their past in burglary cases according to the police.