Step 1: Supplies
1 2' x 8' sheet of 1.5" thick and
1 2' x 8' sheet of 1" thick extruded polystyrene insulation board. It can be pink or blue, whichever your local big box home improvement store sells.
2" thick foam square (only needs to be a little bigger diameter than your neck)
Metal ruler / tape measure
Face mask or respirator
Extendible Exacto knife (must have enough blade in it to cut all the way through the styrene
Various colors of craft paint
Paint brushes of various size (small craft for the details, larger for the base coats)
Sand paper (100-220, plus drywall mesh)
Optional: band saw or hot wire, circle cutting jig, oscillating spindle sander.
Photoshop or other free layer based image editor