18 months ago I started constructing an N gauge model railway it is u shaped ten feet X nine feet X ten feet. I wanted a layout with lots of hills and tunnels. I knew it would be a big project but I became overwhelmed at the amount of plaster casting ( the type used for modelling and to set broken limbs) I would need, it is very expensive and I would need a tone of it for my layout design.
I came up with the Idea of useing some kind of cloth that would absorb water and plaster at the same time. My wife suggested that I use calico ( a type of cotton fabric ) .
We purchased a full roll of this fabric (about 40 meters long and one and a half meters wide) at spotlight for $30 I cut the fabric into 6 inch squares soaked them in water until they were fully wet, then added PLASTER to the mix and then needed it (like with dough) until the fabric was good and wet and saturated with the wet Plaster.
Then I covered my bird wire frame I found that it works as well if not better than casting plaster and MUCH cheaper. Also I must add that I used wall plaster at first, then I found that PLASTER of PARIS, which is a modelling and craft plaster, work much better and is less than half price of the wall plaster.