Discreet Chastity Cage Design & Print

I need a chastity cage designed and 3D printed. Chastity cage seems a simple sex toy, but the fitting and overall design is very important for long term wearing.

Requirements:
- Material: Stainless steel or titanium
- Design: I have a rough idea, open to suggestions
- Feature: Must have a discreet design

Ideal Skills & Experience:
- 3D modeling and design
- Experience with stainless steel and titanium printing
- Knowledge of ergonomic and discreet design principles