About 25 years ago I was contacted by a manager of a Chi Chi's Restaurant (remember those?) in Kansas City who read about my collection in Sports Illustrated who told me that he had a signed credit card receipt from a time when Cal Ripken Jr. ate there in 1987 & asked if I would be interested.
While I doubt Cal still has this Visa card, I did erase (via photoshop) the last 4 digits of his card #: