SOB I don't think they have them in the USA.At least they didn't when I was a kid.
Smarties are a colour-varied sugar-coated chocolate confectionery popular primarily in the United Kingdom, the Isle of Man, Ireland, Canada, Australia, Spain, Portugal, Switzerland, Liechtenstein, Germany, the Netherlands, France, Italy, Greece, the Nordic countries, South Africa, and the Middle East. They have been manufactured since 1937,[1] originally by H.I. Rowntree & Company. They are currently produced by Nestlé.
Smarties are not distributed in the United States, except by specialist importers. This is due to the American rights to the brand name belonging to not Nestlé but the Smarties Candy Company, which manufactures its own hard tablet sweet under the name Smarties (known as Rockets in Canada).