My take on an extruder visualizer themed around a clock. Using Prusa Slicer, I sliced mine to include a color change at the level of the numbers to give a little extra color to it. For the clock face itself, I printed it using supports touching buildplate only, and for the arm no supports were needed. I used a ¼ in. x 1/16" magnet for the arm, though a 6mm x 2mm should fit just fine as well.
The author hasn't provided the model origin yet.