One of the last things we decided to do before plastering was carve a little niche in the wall. It's just one more cool thing about bale houses. You can carve little niches where-ever you decide provided you don't carve into any of the framing members. We decided on a wall, a size and shape and then all that needed to happen was the actual shaping. I used "Grindle" the grinder to remove the bale material not wanted. That is a dusty job, as what comes off the wall is a large dust, so breathing apparatus is essential, as are safety glasses. Once carved out, the sides and top are reinforced with metal lathe pinned to the bales. I fashioned a small sill to match the window sills and installed it by screwing it to the stud on one side, but I had no time to apply a finish before installation, so the entire thing got masked off. Now it just needs its plaster application.