Kids' Interlocking Plastic Puzzle Design

I'm looking for a creative designer to create an engaging interlocking 3D puzzle specifically for children. The puzzle should be made from durable plastic material, ensuring safety and longevity.

Key Requirements:
- Design an interlocking puzzle suitable for children
- Use safe, durable plastic as the primary material
- Ensure the puzzle is engaging and age-appropriate

Ideal Skills and Experience:
- Experience in designing 3D puzzles, especially interlocking types
- Proficiency in plastic material properties and safety standards for children's toys
- Strong creative design skills to create engaging puzzles for kids

Looking forward to your innovative designs!