In 1996, Tyco launched a toy called the Tickle Me Elmo that cost a mere $30 (£15). If you're not familiar with it then check it out on Wikipedia. It was so popular that parents attacked a Wal-Mart ...

Shoppers opening an outer flap on the box housing TMX Elmo are greeted by the popular "Sesame Street" character's squeaky voice admonishing them for peeking. But the lucky consumers who get their paws ...