I am not a huge fan of microscale but I think that the following planes show ingenuity
1) from Lego "Learn with Lego: numbers, counting", scholastic
This is my favorite due to color scheme and the engines. I don't know how you can make such A jagged model look so neat....
Even winglets on the plane! No page numbers, just alphabetical.
Amazing how 3 plates, a beam with holes and studs creates windows. Also I like the approach to engines, a cone, a head piece, and a 1x1 with hole and head piece. Amazing how 3 approaches, preset visual assumptions all combine to create separate approaches to the same object.