3D Modeling of a Humorous FDM Spray Can Attachment – 3 Exclusive Character Variants

I am looking for an experienced 3D designer / Blender artist to create three humorous character models that will function as replacement attachments for a standard spray can.

A reference model can be provided after the project has been awarded to demonstrate the basic function, approximate dimensions and intended principle.

The models must be original creations. They must not simply be copied from existing products, commercially available STL files, marketplaces or other designers.

I am completely open to the use of traditional 3D modeling, sculpting, AI-assisted 3D tools or a combination of these methods. I do not care how the models are created as long as the final result looks good, functions correctly and is suitable for FDM printing.

Required Character Variants

Three different versions are required:

1. Attractive Female Character
feminine and attractive body shape
medium-sized breasts
attractive but not excessively exaggerated proportions
humorous overall appearance
hairstyle must be suitable for FDM printing
2. Male Character
clearly masculine body shape
visible beer belly
humorous and likeable appearance
no unnecessarily fragile body details
3. Attractive Feminine / Ladyboy Character
attractive feminine appearance
feminine body proportions
breasts
aesthetic and humorous design
should be clearly different from the first female character

The three characters should be recognizable as separate designs and not simply identical bodies with minor changes.

Exclusivity

The character models created specifically for this project must not later be resold as identical STL files, 3D models or finished designs to other customers or on 3D marketplaces.

I am not requesting ownership of the general idea of creating human characters or spray can attachments. The exclusivity requirement applies specifically to the finished character designs created for this project.

Functional Requirement

The figures will function as humorous replacement attachments for a spray can.

A precise socket for the spray can valve stem must be integrated into the bottom of each model.

Required dimensions:

entry inner diameter: 4.00 mm
this diameter must continue for exactly 5.00 mm
after 5.00 mm there must be a sharp step to 3.80 mm inner diameter
no tapered transition
the internal spray channel must continue from there to the intended outlet opening

The dimensional accuracy of this connection is important because the model must actually function on the spray can.

FDM Printing Requirements

The models will be manufactured using standard FDM 3D printers.

Printability and mechanical stability are therefore more important than extremely fine visual detail.

Particularly important:

arms must be positioned close to the body
hands should preferably touch or be integrated with the body or thighs
no widely extended arms
no thin free-standing fingers
no long free-standing hair strands
hair should preferably be connected to the head, neck or body
no other thin or fragile protruding elements
compact and stable body posture
sensible minimum material thickness
no unnecessarily thin connections
the finished model should withstand normal handling without easily breaking
minimize the need for FDM supports wherever reasonably possible
clean closed geometry
no mesh holes
no self-intersections
no hidden internal surfaces
no overlapping body geometry
manifold / watertight final mesh
anatomically reasonable transitions between shoulders, arms, torso, hips and legs

The characters do not need to be high-end cinematic or game characters.

This is a humorous physical product. The priority is that the characters look good, are recognizable and attractive in their intended style, print reliably and are reasonably durable.

Required Files

For each of the three character variants I require:

final print-ready STL file
preferably also the fully editable Blender (.blend) source file

The files must use correct real-world dimensions and be created in millimeters.

Project Process

The project can be completed using milestones.

The first character will be created and reviewed first. Once the design, printability and functional connection have been approved, the remaining two variants can be completed.

Please include examples of previous work involving:

Blender
character sculpting
organic modeling
3D printing
FDM-optimized models

The most important factors for me are clean modeling, practical printability, stability and reliable functionality.