A set of 3 chipboard pieces (a solid back, plus an overlay with a window cutout, plus an extra window shape for dimension).
The extra windowpanes are great for adding frost or snow. There's ample space above and below the window for decorating: like a windowbox below the window; or birds, tree branches, etc. above the window.
Use it as a flat card (glue the 3 pieces together after decorating) or paper-hinge the front 2 layers onto the back like a book cover. Maybe add some adhesive foam dots for a little depth between the fronts and back... I'm sure you'll find your own uses.
Approx. 4" x 6"
One set (1 back and 1 laser-cut overlay and one)