I lost $320 in a paper clip at the convention last year!! Thanks for finding it. (Just don't ask what I was doing in your travel bag.)

Now, I suppose you'll want me to identify it so here goes: $320 in American cash in a paper clip. There, that ought to positively identify me as the rightful owner. If you'll return it to me at my table, I sure will appreciate it. As a matter of fact, I'm so grateful that I'll give you $320 off your first purchase at my table as a reward for returning it to me.

Thanks!

Tyrus