How can I prevent texture stretching while scaling a mesh?

Now that you’ve shown exactly what it is I’ve been looking for. Care to write up a tutorial or video of exactly step-by-step how it was done?

The video was quite fast. I could tell a blueprint was used to accomplish the task, but I’m sure the only ones able to pick up on exactly what was happening are those who are well experienced. It looked like you were using a child too and not a parent, but I haven’t gotten into doing those quite yet. A step-by-step for a noob would be wonderful.