Coming soon from Avis Aircraft Kits …

[SpaceRanger]

[Graeme H]

Wow, that one sent me off to Wiki, to find it was an actual thing, looks like a good candidate for Tin Tin, perhaps Hergé, like me never knew of it's existence
If they wanted to do offbeat, but wanted something that would actually sell they would have been better with the DHA Drover.

[Ansett A330]

... off to Wiki, to find it was an actual thing, ...

As is fairly common on Wikipedia if you look in the History of the Article :

https://en.wikipedia.org/w/index.php?ti ... on=history

most is the work of one "Enthusiast" :

https://en.wikipedia.org/wiki/User:FlugKerl

and Wikipedia even references a YouTube video :

https://www.youtube.com/watch?v=x1xifECLKFc

parts of which even look fake!

Similar one with sound :

https://www.youtube.com/watch?v=JnZWD6H_rfc