While surfing the other day I ran across the Significant Objects Project. Here's how the project works. The project curator buys a (usually kitschy) object from a flea market or thrift shop. The object is turned over to a writer, who then writes a fictional history of their association with the object,thereby giving it significance. It's then listed on eBay, along with the fictional history. It's made clear to potential buyers that the story is fictional.
Here are the stories re the Santa Claus Nutcracker and the Creamer.. The eBay bid history can be linked to from these pages.