Miniature paper airplane: Hercules C-130
Here is another miniature airplane, the Lockheed Hercules C-130:
The C-130 is a versatile transport aircraft. It was designed to be able to use unprepared runways. Due to its robustness and versatility, it is used in more than 40 variants all over the world. The aircraft has remained in continuous production for more than 50 years.
Here is another variant: This one is based on a design used by the Jordanian airforce:
You can buy this model from my Etsy store.