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The butterfly #3 for my daughter. She would love that.

Color changing filament depending on the temperature. That would be nice.

That would be this one for me : the 3d printed animatronic robot head
https://learn.adafruit.com/3d-printed-animatronic-robot-head

- What is the most interesting thing you have seen done with a 3D printer or 3D printing technology?
The most interesting thing i've seen done with 3D printing technology is the fact that you can...