Halloween Extruder Visualizers

I created a set of Halloween-themed Extruder Visualizers, using three of [ukcat](https://www.thingiverse.com/ukcat)'s flat Halloween designs.

These attach magnetically to the spindle of the extruder stepper motor. They are designed to have an 8mm x 4mm neodymium disc magnet glued to the back of them. Note that some stepper motor spindles are recessed further than others, and it may be necessary to glue a pair of magnets together to reach the spindle.

The disc-shaped background is 2mm thick, and the design on top is 1mm thick. Pause your printer when the disc has finished printing, and the design has just begun. Swap filament colors to achieve the two-color effect. You can use the Prusa [Color Print](https://www.prusaprinters.org/color-print/) page to insert a pause command in your Gcode file at a specific height. When printing at 0.2mm layer height, you would want to pause at 2.2mm.

These are just for fun, so... Have fun!

Oh, and there's a [YouTube video](https://youtu.be/7