Then there is the planet surface, which is almost finished (the photo was taken whilst parts of it were still wet):
The large hill is polystyrene cut into a vague hill shape with a hot wire tool, the smaller hills are crumpled newspaper. I stuck these to a sheet of particle board, then made a paper-mache 'clay' by soaking shredded newspaper in a mixture of PVA glue and water, mixing occasionally with my hands until it had a texture like wet clay. I spread an unever layer of this over everything, then when it was slightly drier I smoothed PVA over the surface with my hand to smooth and seal it. All in all it took about 1 litre (that's 2 pints) of PVA and 4 free local newspapers.
I bought some emulsion paint tester pots - fireside (a dark rich red), sundried tomato (a darkish orangey red) and classic red (bright post-box red). When the planet surface was dry, I painted it with the three shades of red in a blotchy manner. When that dried I made a mixture of PVA glue and dark red paint and spread on a thick layer before sprinkling 'coarse iron ore ballast' (from a hobby shop) onto it. Before the glue dried fully (but dry enough to stick the ballast in place) I painted on a thin layer of watered down PVA/paint mixture to firmly fix it, and make the colour of the ballast match the painted surface more. When that was dry I painted on a 'dirty wash' (black drawing ink, red drawing ink, a little dark red paint and quite a bit of water) so it would sink into the recesses on the set and make them darker. After that, I dry brushed a little bright 'classic red' paint across the surface to highlight the texture.
I might be adding some blue crystal clusters on the surface too, but I'm not sure yet.
I've also done the sky, which is purple:
It is a sheet of white foamboard (still 2 for 1 at the craft shop - woohoo!) which I took into the back yard and covered in spray paint. I used mostly spray paint I had left over from my student days when I worked with it a lot. I used navy blue, burgundy red, metallic purple, dark purple and light violet. The photo isn't too good because I took it when the paint was still wet, and very reflective.
Next it's onto puppet building...