Slider2732 | Variant - Lidmotor's Blinker Motor @Slider2732 | Uploaded November 2019 | Updated October 2024, 2 hours ago.
A very similar circuit and construction to Lidmotor's, but more successful for the ridiculously low light level of our livingroom table.
Other, similar circuits use 2 resistors to the Base of the NPN transistor, with the Base between them... this uses a diode.

Original Hacktuber setup and circuit:
youtube.com/watch?v=-kYmffmOEDc