As a dog person I believe we need more pet-related extruder indicators.
This one is a dog chasing his own tail! A particularly impressive feat with a 0.8mm nozzle — see https://youtube.com/shorts/WqA5RLMZfmo?feature=share !
If printed in orange, I know, it looks more like a fox — but still fun to watch.
The 3mf file includes color changes for multi-color prints. No MMU required, just swap filament as prompted.
Stack two 8x3 mm magnets on top of each other and super-glue them to the back of the model to mount it to the extruder.
Acknowledgement: The dog going in circles was derived from https://www.seekpng.com/ipng/u2e6e6r5r5y3r5a9_dog-chasing-his-tail-royalty-free-vector-clip/, traced in Fusion 360.
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The author marked this model as their own original creation.