Well Pablo, all your answers are here:
1972 Fighter Planes of WW1 issued with Kelloggs Coco Krispies
1972 Fighter Planes of WW1 Puffa Puffa Rice issued by Kelloggs
Browse the whole website, but starting with just the Coco Pops page you'll find many of these promotional mini-kits! I bought the SE5 and Albatross at a model show in Manchester.
Sometime in the 1990s when ACADEMY was starting out they did white plastic reissues of selected kits from various promotions like:
1968 Floating Model Ships issued with Kelloggs Coco Pops
1969 Space Age Models issued with Kelloggs Sugar Smacks
1972 Historic Cars issued with Kelloggs Sugar Smacks
http://cerealoffers.com/Kelloggs/Var...del_ships.html
CocaCola Philippines ran a bottlecap promotion with these in the 1970s which I all lost
http://cerealoffers.com/Cereal_Partn..._clippers.html
Hope this was a nice trip down memory lane for some of us!