I had everything printed at Shapeways. Here the various bits are clued together with CAA. The ‘stone’ platform everything is sitting on is some Sintra (pvc) that has the stones scribed in.
This was the master that I used to make my RTV molds from.
One thing you get from doing this kind of thing is .. all the things you did wrong .. and how to fix it ‘next time’. I would for example make it so the pieces locked together with tabs or something .. no reason not too as that would just require a small change in the CAD.