LOS ANGELES—A place mat from the opening celebration of Takashi Murakami's exhibition at the Museum of Contemporary Art has popped up on eBay with a starting price of $999.99, the Los Angeles Times reports. Each guest at the opening was supposed to take home one of the place mats, designed by Murakami and made of fiberglass featuring happy-face flowers, but, according to the Times, "Some diners who left early swept up mats from unoccupied spaces as well as their own. People who got up to socialize before dessert found their mats missing when they returned. Shameless thieves went trolling, while proud mat owners sidled up to the Japanese artist and asked him to sign their new possessions."

Also on eBay is the press kit for the exhibition, starting at $9.99.