US version: https://en.m.wikipedia.org/wiki/Kinder_Joy

"Kinder Surprise eggs are legal in Canada and Mexico, but are illegal to import into the US. In January 2011, the US Customs and Border Protection (CBP) threatened a Manitoba resident with a $300 (Canadian dollars) fine for carrying one egg across the US border into Minnesota.[43] In June 2012, CBP held two Seattle men for two and a half hours after discovering six Kinder Surprise eggs in their car upon returning to the US from a trip to Vancouver. According to one of the men detained, a border guard quoted the potential fine as US $2,500 per egg.[44]"