The cork technique is the most widespread in Neapolitan cribs, but now it has also spread to dioramas and cribs of all kinds.
To create the scenography, the material we need to get is: wood strips, plywood and clearly cork. To glue it you need hot glue, nails or screws, helping us with a screwdriver.
The first thing to do is a generic structure, understanding where to place the cave or the mountains / rocks, then apply the cork by nailing it to the wood trying to position it always with the same direction. Cork can also be applied by overlapping the various pieces or placing them together, in the first case the empty spaces must be filled with moss, while in the second case the remaining voids, since they are larger, must be filled with paper and subsequently grouted.
third and last system is to plaster the surface slightly, with very liquid plaster, in this case we have a control of the whole scene, but we must then paint the whole thing well.