Road Runner lol ;) print everything @ 50% just add a 4mm OD rod, a switch, 4.5mm ID spring, a 9v battery & speaker connectors.



Where I got the idea from : https://www.youtube.com/watch?v=1tQOJ6husuQ&index=32&list=PLHzA91xICGI7X5rBOZR1mgFsQsseEZ77r

Or make it wireless ;)



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