3D Printable Cartoon Bear Character Models

I need 2 separate 3D printable character models based on the attached bear characters.

Character 1:
- red shirt bear with balloon

Character 2:
- blue medical bear with syringe

Requirements:

- Models must be prepared for FDM 3D printing.
- Printer: Bambu Lab P2S.
- File format: STL (required), optionally BLEND/OBJ.
- Models must be manifold/watertight and print-ready.

VERY IMPORTANT:
Each character must be separated into printable parts:
- head
- body
- arms
- legs
- accessories
- other colored parts if needed

All different colored parts must be separate printable pieces with proper connection joints/pins/holes for easy assembly after printing.

I want to print the parts separately and assemble them later.
The separation should make multi-color printing easier without AMS.

Style:
- smooth cartoon style
- clean geometry
- optimized for easy printing
- minimal supports if possible

Size:
- around 8–10 cm tall

Please include:
- split parts
- assembly-friendly design
- proper wall thickness for PLA printing

Reference images attached.