Back in 2019 when I was introduced to the wonderful world of 3D Printing, Augmented Reality, and Virtual Reality, I started an after school club which I called the 3D Design Club. It also incoporated coding and 3D Modeling.
Students would build immersive environments through coding in CoSpaces Edu and the Merge Cube and they would produce their builds using 3D Modeling with Tinkercad or Sketchup and then 3D Print their prototypes!
Students would have usually one of two options for their builds:
one that has a practical utility in its purpose; a "fix" in one of their everyday environments or
a cross curricular project infusing at least two content areas
I've tried to bring this club everywhere I've served!