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Show HN: Lamp Carousel – DIY Kinetic Sculpture Powered by Lamp Heat

Evidlo Wednesday, December 24, 2025

I wanted to share this fun craft activity for the holidays that I've been doing with my family over the last few years. I came up with these while cutting up some cans trying to make an aluminum version of paper spinners.

There are a variety of shapes that work, but generally bigger+lighter spinners are better. Also incandescent bulbs are the best, but LEDs work too.

They remind me of candle carousels I would see at my grandparents' house during Christmas. Let me know what you think!

Summary
This article explores the physics behind various types of fidget spinners, analyzing their rotational dynamics and the factors that influence their spin time and stability. It provides a technical overview of the engineering principles involved in the design and performance of these popular toys.
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