Ye-es. Once.
It was a copy of an autographed book. I have forgotten the title of the book and the author, but, it was offered because it was published by Hyperion Press, which is a subsidary of the Walt Disney Company.
After I had won it, I gave it to the second highest bidder. The thrill for me is in the chase, not in the winning. So one I have won something, the thrill is gone. Anyway the second highest bidder was a child, and I never like to compete against a child. They are too easy to beat, and my giving the book to him soothed my conscience.
I do think they are (were) silent auctions on the four day cruises, as the last cruise I was on was a four day cruise, and one item I wanted to bid on, was a white jacket worn by the chefs on the ship. I wanted to win it, then give it to my BIL, who is thinking about going to chef school. But, I didn't put a bid in on it because, I had no easy way to get it to him, as he lives half way across the country from me. The minimum bid was what ever price they put on the jacket, and I think it was something like $200.00. Of course, going up from there. And the auction was set to conclude, when I would be at dinner, as I had a late seating that cruise, and, thus, I would not have been there to pick it up, if I had put in the high bid. Like I was there to pick the book, as I had an early dinner seating that cruise.