Last week challenge was structure, and this was a really good challenge for me. Of course you can just take a picture of wall or concrete or similar, but that is not a challenge. I was almost thinking of giving up, in same time that I saw our wonderful bowl in wood that is cut from one piece of wood. We (or actual my wife) bought it when we visit Fuertuventura earlier this year.
Anyway, here is one of my contributions, and below the whole bowl. Both as a bowl and as cutting board.