GMSH Mesh Generation

I need a skilled GMSH user to create various structured and unstructured 3D meshes for a cube and an "I" shape. The meshes will be used for Computational Fluid Dynamics simulations.

Requirements:
1/ Mesh a cube in 3 ways:
- Basic 3D Structured Mesh (prisms)
- Single hexahedron split into:
- 6 pyramids (structured) and then
- Single hexahedron split into:
- 12 tetrahedra (structured)
2/ Any shape for a hybrid structured mesh with all 4 primitives: pyramid, triangular prism, hexahedron, and tetrahedron
3/ Unstructured meshes for:
- Cube
- shape used for hybrid mesh that you have produced
- "I" shape using one of the 4 primitives

Deliverables:
- All files created
- Pictures of meshes generated

Ideal skills and experience:
- Proficiency in GMSH
- Experience in generating structured and unstructured meshes
- Familiarity with CFD applications
- Attention to detail and accuracy in mesh generation