It's a fascinating tale.
Kinder Surprise, also known as a Kinder Egg or Kinder Joy or, in the original Italian, Kinder Sorpresa, is a candy manufactured by Italian company Ferrero. Originally intended for children, it is also popular with adult collectors and has the form of a chocolate egg containing a small toy, often requiring assembly. "Kinder" is the German word for "children".
Controversy:
United States: The 1938 Federal Food, Drug, and Cosmetic Act contains a section highlighting that a confectionery product with a non-nutritive object, partially or totally embedded within it, cannot be sold within the United States, unless the FDA issues a regulation that the non-nutritive object has functional value.
Essentially, the 1938 Act bans “the sale of any candy that has embedded in it a toy or trinket”. In 2012, the FDA re-issued their import alert stating “The embedded non-nutritive objects in these confectionery products may pose a public health risk as the consumer may unknowingly choke on the object”.
UK: [where there had been unfortunate fatalities]. This was discussed in the UK House of Commons and also by the UK Department of Trade and Industry which said, "The child’s tragic death was caused by the ingestion of a small part of the egg’s contents. Many other products and toys with small parts are available in the market place. If we were to start banning every product that could be swallowed by a child, there would be very few toys left in the market”.
(we're a bit off topic maybe)