  Twisted heterostructures of two-dimensional crystals can create a moir\'{e}
landscape, which can change the properties of it's parent crystals. However,
the reproducibility of manual stacking is far from perfect. Here, the
alternated stacking of post-transition metal monochalcogenides and transition
metal dichalcogenides in misfit layer compound crystals is used as a moir\'{e}
generator. Using X-ray diffraction, the presence of twins with a well-defined
small twist angle between them is shown. Due to the twist, the surface
electrical potential from the induced ferroelectricity is observed using
scanning probe microscopy and electron microscopy.
