My RPG group uses a battle map for more confusing fights so I thought I'd make some terrain to bring the map to life. I decided to make some small accessories that would provide cover and impede movement.
Basic Piece #1 and #2: Cave walls. These are meant to be placed on the map as free standing walls to hinder movement and give cover. They were first roughly carved out of blue foam and then melted down with a wood burner. I would hover the tip of the burner over the foam until it melted down to a more organic texture. To give them a bit more weight so they won't be bumped around as easily, I implanted heavy hex nuts into the undersides. I then painted them up from black through a few shades of brown.
Basic Piece #3: Crate(s) and Barrel. Once again I used my wood burner! I started with small 3/4" wooden cubes and barrels from the craft store. For the barrel, I simply drew lines with a pen for the vertical planks and then stained the whole thing with wood stain. Finally picking out the metal rings with steel metallic paint. For the crates, I traced out lines on the cubes in pencil and then etched them in with a fine tip on the wood burner. And again used wood stain for the color. The lids were cut from a sheet of balsa and the planks were also burned in. For the nails, I simply used an ultra fine tip sharpie to create the dots. Once dry, I superglued them all together.
The scale is 28mm with a mini to illustrate it.