RLDesign

I am working on a project right now with a client that has a hard time fully visualizing the size of spaces even in 3D, and so I am wanting to put in a 3D block or silhouette of a person for reference. I understand that chief has 2D silhouettes, but I am hoping someone out there has gone about creating their own 3D version that they are willing to share or could give suggestions on the best way to go about making my own.