For this part I used a 2 part mold. To do so I used white clay to create a surface around my part that followed its curves. I then constructed a foam core box around the piece and poured in silicon. Once the silicone had cured I released my part and cleaned out the white clay. Pictured below is the first half of the silicon mold with white clay cleaned out and the new foam core box ready for the second half.
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