Vintage 1989 McDonalds Little Mermaid Happy Meal Ariel Flounder Ursula 80s. The McDonald’s Little Mermaid Happy Meal released in 1989. Please see last photo for the drive-thru advertisement for this set. Included in this listing. Full set of 4 Happy Meal Boxes – New/Unused. Full set of 4 Toys – New/Sealed. Full set of 2 Xmas Ornaments – New/Unused. Full set of 2 meal bags – New/Unused (Very Rare).