I’m at the exploratory stage with Blender and the mighty Cycles, so I set up this project based on some photos that I found online of letter blocks, a simple scene just for testing. I added some film grain and Chromatic Aberration in post, but cycles renders look so sweet it’s hard to throw grain on them.
All blocks share the one surface, every time I duplicated a block I went into the UV editor and moved the map about over the wood texture so no two blocks looked the same.
I also used micro poly displacement so that the edges would be irregular although it’s very subtle.