McDonalds has been putting out Happy Meal, (Happy Set, as it's know in Japan.) toys since 1979. Not exactly sure what year they put out thier Dragonball figures, but the set included Gohan, Super Saiyan Goku, Super Saiyan Vegeta and Piccolo. To my knowledge, these figures were never released in America, and were only ever availible in Japan.

Sometime later, McDonalds also released another set of toys, this time what I believe are spinning tops. This set includes Goku, Super Saiyan 3 Gotenks, Super Saiyan Vegetto and Buu! You'll find pictures of the full set below.