Builders pour concrete into temporary wooden molds. MIT researchers invented a way to make them out of on-site soil instead.

Assemble your mold using the textured wood pieces. Mix your concrete and pour it into the mold, making sure it's evenly distributed. Let it set fully before removing the form. This is where the ...

We can see that maybe readers have only so much space in their lives for concrete owls, but this process could be a valuable part of the armoury when it comes to making some less decorative items.