Wow, that's right up there with the Ricicles
In the 1990s in the United Kingdom and some other markets, small marshmallow pieces were added to the cereal. This met with mixed but generally unpopular reception. A while after the change, 'original' Ricicles (the cereal in its original non-marshmallow form) was sold alongside the new version; however, the marshmallow version was generally unpopular enough for it to quietly disappear from the shelves after a couple of years. As of January 2009 Ricicles were no longer included in Kellogg's variety packs instead being replaced with a new product to test on customers.