Good question! It has to be the creativity of LEGO! Since 1932, Lego has remained the No.1 Toy seller of this century and will remain to be for the next 100 years. We hope!
It is definitely arguable, but LEGO was voted a while ago the most popular toy ever invented.
The Chihuahua is the most popular breed of toy dogs. The second most popular toy dog breed is the teacup yorkie.
Ugly Dolls were the most popular toy last year.
Toy story
iphone
LEGOs
Zhu Zhu Pets
Stuffed animals.
it is hot wheels
The Pet Rock is arguably the popular toy of 1975. There were over 5 million sold in a six month period.
The 3DS, with all its 3d picture-taking abilities, and games that come with just the console, is most definitely the most popular electronic toy for 2010.
Maybe a dog.