The perfect spot for googly eyes is, unfortunately, right over the bottom two screws on the Stealthburner! Since I need screw access, I never glue them on. I've taken apart my toolhead a ridiculous amount of times recently and the eyes' adhesive would eventually fade off. This is my solution. :D
The peg portion is tapered, but resize it in slicer if it doesn't fit snug. You should be able to fit even larger eyes on, if you so desire.
Input shaper impact? I have no idea.
BOM: 2 googly eyes
The author marked this model as their own original creation.