Whoops! This wallpaper strip ended up too short. I suspect I forgot to add the 3″ extra for trimming at ceiling and floor. Sure would like to avoid replacing this whole strip. I could have spliced a piece in horizontally. But that would have left a (slightly) visible horizontal seam, as well as put stress on the wall if the razor blade scored the surface. So I opted to patch in a piece. To disguise the patch, I cut along the design, and discarded the bottom piece.Then I used scrap paper and cut along the same part of the design, making sure to leave a thin part of the design that would be overlapped (don’t want any gaps showing). This patch was placed under the piece on the wall, with the top piece overlapping from above (less noticeable when viewed from above … the direction of lighting also affects this). Once all pieces were smoothed into place, it’s intact and homogeneous, and, best of all – undetectable.