This final design is a pair of headphones with an interactive circuit added. An LED light is added to the top of it. To start it, the telescopic parts need to be tightened to ensure that the two conductive tapes are connected at their ends, thus forming a series circuit.
This final design is a pair of scissors with an added interactive circuit. I added an LED light on its side. It will light up when the scissors close. The key activation part is that when the handle is closed, it will cause the two conductive tapes to connect, thus forming a series circuit.
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