Is it not true, this wall looks absolutely plausible?
Meanwhile, it is actually "from nothing," and the bricks there will not even smell!
You can use it as a decorative element of the hallway, living room and even bedrooms.
And it is made from the foam. The order of work is shown in the photo, here we will explain only:
1. Basic material - foam sheets + plywood (although instead you can take a more easy basis, corrugated cardboard, for example)
2. Clay - Aerosol Construction PVA
3. To create a texture is used soldering iron
4. Paint - Automotive aerosol, 3 layers
A source