This is my extruder visualizer in the style of Deadpools logo. You must print it with support since I added a little extension that only one magnet is needed. I have used a magnet with the size of 8 x 2 mm. The base where you need to glue the magnet on has also the same size.
If you like to print this with three colors like it is intended to be you need to change color depending on your layer height at 3,2 mm and 4,2 mm.
The author hasn't provided the model origin yet.