Here are the slides from Otis' workshop using using the software Blender for 3D rendering. You can use it to design houses, characters, landscapes, entire worlds! These slide give you a little glimpse into the possibilities with Blender.
Otis Laundon on using Blender - MozFest 2017
We're posting up the session plans for the youth led sessions at MozFest 2017.
Wow. 3D creation looks hard but exciting :D