I have always wanted a very small and stable straight edge for manually cutting out labels and other relatively small items. I designed one out of stainless steel and had two machined for me, one is about 4.75” long and the other is about 7.5". There is a channel at the bottom for a thin strip of peel and stick ruler backing. The idea is that the backing is slightly proud of the surface so that when you press down, it compresses enough so that the cutting edge is flush against the paper and the compression also serves to hold the paper securely. There was an issue with the straightness of the beveled edge of the first two prototypes, but they work well when cutting against the 90° edge.
