Bunkers From PlasterIf you think these bunkers would make a suitable shelter for an Ambassador, it could be because Ariss cast them in an old Ferrero Rocher chocolate box.
The image to the right shows the type of box used however Ferrero Rocher come in various other designs that would work just as well. Don't worry about marks cast into the plastic being transferred to the plaster as these are easily hidden with battle damage.
To reduce the amount of plaster needed, and the weight of the finished piece, I used a second, smaller box which I sank into the larger box. The smaller box needs to be weighted and should be inserted such that it 'floats' about 1 cm above the bottom of the larger box giving us our roof thickness.
After allowing it to dry for an hour the moulds are removed and we are left with a hollow block of plaster:
- Because the Ferrero Rocher boxes are made from hard plastic there is a good chance that they will break when removing the plaster. However, with the application of a little sticky tape, it can probably be stabilised sufficiently to be used again. I used the same box to make three bunkers for these projects despite breaking the box while removing the first of them.
- As an alternative to using a second box to make the hollow, you
could use something like a block of polystyrene and leave it embedded in
the finished item. You will find however that you need to weight it
down until the plaster is set as it will tend to float.
Bunkers From Plaster - Part 2Having created the basis of our plaster bunker in part one, it's time to add some details. Note that this is best done within an hour or two of casting i.e. while the plaster is still damp and relatively soft.
We'll begin by carving some firing slits. The best tool for the job is a craft knife with a chisel blade however you could probably do a decent job with a relatively sharp flat bladed screwdriver. The technique is to use a straight edge and drag the tool repeatedly on the surface of the plaster to make a shallow channel. To further increase its depth, use the tool as a chisel, diagonally cutting slices of plaster. It'll get deeper pretty fast but don't rush it. Cutting the plaster out in smaller pieces will result in smoother edges. Also bear in mind that there is little no point in going all the way through to the hollow; a deep channel is sufficient.