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White Chocolate
Skulls in PLA Trays 21
Making molds for chocolate casting with 3D printing.
W RITTEN BY A NNA K AZIUNAS F RANCE
Every Halloween I make treats to give away.
I don a costume and distribute them to ev-
eryone I meet during my Halloween travels.
I call it “reverse trick-o-treating.” During Oc-
tober of 2012, I created a 3D-printed choco-
late mold maker and individual trays in
which to place the chocolates before bag-
ging them. To cast the chocolates, I used
food-safe silicone to make the final choco-
late mold ( Figure 21-1 ) from the 3D-printed
mold maker.
Figure 21-2. Happy Halloween 2012 from Kali and
Finn & Jake!
I used an OpenSCAD script to make a mash-
up of a parametric box (by Thingiverse user
acker ) and my skull to create the mold maker.
The trays for the chocolates were created us-
ing the same parametric box script.
The candy trays were printed in PLA, and
were only used for presenting (not molding)
the food. If you're worried, use a layer of
parchment or wax paper to separate the
skulls from the tray. I cast many batches of
white skull chocolates and then placed them
in the PLA trays. I placed the trays in treat
bags and sealed them with twist ties.
Figure 21-1. The white chocolate skulls
I had scanned the skull a few months earlier
using 123D Catch and had already created a
3D-printed necklace with it for my Kali Hal-
loween costume, which I wore ( Figure 21-2 )
when I handed out the chocolates.
 
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