This guide describes a project to build a set of costume ears that will perk up when there's a loud noise. The final construction was quite basic, but could be incorporated into a more elaborate headpiece of, say, a werewolf costume.

It could also be the basis of a steampunk gadget that reacts to sound.

Have fun!

This guide was first published on Aug 22, 2018. It was last updated on Aug 22, 2018.

This page (Wrapup) was last updated on Aug 18, 2018.

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