I've just finished painting another scratch-built 3D dungeon tile for my 15mm scale Warhammer Quest project - The Gaol. The Gaol was a special tile from an issue of White Dwarf. It had several scenarios related to it - either involving the Warriors starting off imprisoned in The Gaol, or there being an enraged minotaur about to break free from it. I built this mainly using 5mm foamboard, with sections of cocktail stick for the iron bars. I textured the bars in the latrine hole with filler & painted them as rusted & covered in (eww) crap. I also painted the mould on the walls & puddles on the floor with gloss varnish to add to the dank atmosphere. In the future I may add some patches of 'straw' static grass as rudimentary bedding.