# Is there a toy/mechanism like this? (magnetic chain)

**URL:** <https://boards.straightdope.com/t/is-there-a-toy-mechanism-like-this-magnetic-chain/688052>\
**Category:** In My Humble Opinion\
**Created:** [May 9, 2014, 2:35pm UTC](https://boards.straightdope.com/t/is-there-a-toy-mechanism-like-this-magnetic-chain/688052 "2014-05-09T14:35:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![AaronX](https://avatars.discourse-cdn.com/v4/letter/a/7bcc69/32.png) [@AaronX](https://boards.straightdope.com/u/AaronX)\
**Post date:** [May 9, 2014, 2:35pm UTC](https://boards.straightdope.com/t/is-there-a-toy-mechanism-like-this-magnetic-chain/688052/1 "2014-05-09T14:35:00Z")

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I have in mind a metallic chain, something like a watch strap. The links are shaped to obstruct motion, so that the chain cannot flex towards one direction, and maybe 45° per link in the other direction. Each link has a magnet, and the magnets are such that, when one link is stuck to a magnetic surface, the magnets pull subsequent links until the entire chain ends up stuck to the surface. This clip from the old Spider-Man 2 movie (Doctor Octopus) is something like what I mean: [Birth of Doctor Octopus - YouTube](http://www.youtube.com/watch?v=cglaHHuotz0&feature=youtu.be&t=12s)

Is there any thing that does this? Or am I remembering some magic bracelet from a movie?