The gift in itself was a hit. What little girl wouldn't like getting to open up an oyster to pull out their own pearl?!  The problem was that the pearl was oval shaped and didn't fit into the dolphin necklace that came with it.  So, now, we've got a pearl with nowhere to go and an empty necklace. I'm sure there was no way for the manufacturer to know this unless it's common and many people report similar instances.