Hi!
I'm studying architecture, and as a part of the education all of us went to concrete factories in Norway. While everyone else made furniture weighing over 100 kgs, my interest in shaving got the best of me!
To make this I first turned the handle in wood (which I used on another brush). Then I casted a silicone mold over that, which later I used to cast the concrete.
Attachment 124315
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Attachment 124317