score:3
I'm not sure how we're going to measure fame here, but one very well-known toy, widely manufactured after a single physical original is Raggedy Ann. The original doll was assembled by members of Johnny Gruelle's family, and after he wrote books about her she became widely copied. For more information see this collection of antique and modern Anns.
Upvote:2
Fame is very much in the eye of the beholder, which makes your question difficult. The same goes for the definition of toy.
And these days the relationship between fiction and toys is fluid -- is Star Wars a media series with lots of merchandise, or the other way around.
That being said:
Or do those fail the "individual" test of your question? I'd call the basic box of those construction sets one toy, because you get nowhere with a single screw or girder.