How to merge two object into smooth shape (beginner) - Modeling - Blender Artists Community
Mirror Modifier — Blender Manual
Blender How to Merge Objects With Vertex - YouTube
modeling - How to join vertices of 2 separate parts of one object - Blender Stack Exchange
How To Merge Meshes In Blender | The Motion Tree
Daily Blender Tip 269: Combine UV's from multiple objects - BlenderNation
Blender Merge Objects Tutorial - RenderGuide.com
GitHub - Philipp-Seifried/Blender-Massive-Boolean: Blender add-on that can combine tons of objects, by running clean up steps after each Boolean operation.