Cartoonish Alien & Saucer STL

I'm seeking a 3D model in STL format of a cartoonish alien and a flying saucer. The saucer should be articulated and capable of opening up to allow the alien to enter. Alien must be articulated too arms, legs and head moves

Requirements:
- Intermediate level of detail for the alien model
- Cartoonish style for both the alien and the flying saucer
- Medium size, with a maximum height of 10-20 cm

Ideal Skills and Experience:
- Proficiency in 3D modeling software
- Experience with creating articulated models
- Strong understanding of cartoonish design aesthetics