A couple of years back, there were several sellers of black, hard-plastic square bases on eBay. They all seem to have vanished.
These bases were black squares/rectangles of precision-cut 2mm plasticard. They came with a thin paper cover on each side.
Does anyone know if there are companies still producing these? They were identical in size to the widely available MDF bases, but had a couple of advantages over those, especially for hard-plastic figures, which could be glued directly to the bases with polystyrene cement. The other thing was that there was no risk of warping.
Any pointers much appreciated!