Create a decorative frame inspired by the handle of a futuristic katana

Create a decorative frame inspired by the handle of a futuristic katana. The frame should have elegant, flowing lines, with details such as geometric patterns and integrated light circuits. Use dark colors like black and metallic gray, with accents of red or neon blue to give the impression of advanced technology. The design should evoke a feeling of power and precision, while adopting a Western cartoon style, with clean lines and a dynamic aesthetic.