Ultrasonic animal repeller extension
thingiverse
This is an extension/spike for an ultrasonic solar powered dog repeller like this one (they all seem to be the same dimensions): https://www.amazon.com/AUDS-Ultrasonic-Deterrent-Flashing-Repellent/dp/B08R37BV54 Print it offset on the z axis to create an extension, or print the entire thing to get the spike for the ground. Note that the reason it looks like a rocket is because I added some stabilizers to help stand it up during printing. They'll break off. Without those I had trouble getting a tall, thin part to print all the way without toppling over.
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