For me it was molds from Bragdon because there are no rocks in The Netherlands but the molds from him are the best there is because you should not forget to look carefully at scaling down. Making rocks was not an option too much work for me and his molds were perfect of course with a lot of chopping I make also some. Real rocks are way too big for my job and neither fit nor realistic. I do this because I had a specific goal and can only be done with his molds and to scale. But everyone (railroaders) has their own way which is nice because it always remains a hobby. I have seen a lot layouts with beautiful rocks on O gauge Railroading Forum. The color is also very important I used 3 colors some 4 to make this.
There are some pictures some of them never was on this forum.
