When it comes to the field of heraldry, it's almost limitless.
These are ready to be hanged on the wall.
The first two are two-faced tempera paintings on hardwood (recycled furniture doors, about 55x45x2 cm, HxlxD). The idea was to make use of both faces, so basically you can hang it with any face, using a dedicated hanger. The holding points are on the sides.
The third one are in fact two oil on canvas paintings (90x30x1 cm, HxlxD) I've put together for easier display purpose.