viewing stones are often associated with bonsai. the traditional way to display them is the daiza, like this
i think that if these stones represent mountains, why not display them with a mountain setting. Sort of similar to bonkei, which is a tray landscape. I call mine the mountain reflecting lake landscape.
5.75″ x 3.75″ x 1″ OD
5″ x 3.25″ x .75″ ID
(pithecellobium tortum)
5.75″ x 3.75″ x 1″ OD
5″ x 3.25″ x .75″ ID