Back in 2016, we featured a stunning wooden machine that employed falling steel marbles to play a merry tune. As plans are drawn up for a new version, its builder has looked back to the designs of ...
[youtube=http://www.youtube.com/watch?feature=player_embedded&v=X_iW9nrBtHI] Keeping with my theme of DIY projects as gifts, I present to you this little treat, a ...
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