Hi Lee, try this, get your walls to the desired thickness, then apply cut thin cork brick/stone to the areas you want to show as worn away stucco/plaster areas.
Then apply sheets of cork to the areas to be shown as stucco/plaster [ same thickness ].
Now fill in the areas btwn the brick/stone to show mortar and apply spackle or wood filler on the rest to show stucco/plaster.
The pics. shown need more mortar and stucco build - up, also more spackle to cover the cork texture to make the pieces of cork look more like stone.
This wknd I will be attempting to make a farm house using this method but instead of underlying brick/stone there will be a woven wicker type of material.
Good luck and show us your progress. - Cheyenne



