Researched stainless tile - advised not to use outside even though it is frost resistant, and not for floors. So I am thinking that any project would have to be inside and vertical. Also the site said to use unsanded grout and plastic tools to prevent scratching. Maybe I bought a pig in a poke (whatever that really means).

They would look good combined with vitreous glass tiles, natural tumbled stone, really a lot of things. I would still use sanded grout myself; I can't stand the unsanded grout. I have used sanded grout with mirror tile and have not had any problems. When I grout over mirror tile, I grout and clean gently. With tiles this large, it would be easy to cover the tile with that blue painter's tape that you can get at Lowe's before you grout.

You could mix glass tile, stone or travertine tiles to create a mosaic blend

It would be good mixed with glass as a back splash, or as a modern mirror or picture frame.
Remember to post pics when you use them.
Kathy