Another famous example of this is McDonald's Monopoly: https://en.wikipedia.org/wiki/McDonald%27s_Monopoly#Fraud https://en.wikipedia.org/wiki/McDonald%27s_Mono

Another famous example of this is McDonald's Monopoly: https://en.wikipedia.org/wiki/McDonald%27s_Monopoly#Fraud https://en.wikipedia.org/wiki/McDonald%27s_Monopoly#Fraud However, this fraud occurred in the late 90s instead, which is presumably why it's not mentioned in the article, which focuses on an earlier time period.