I am adding a bathroom in my basement and would like to add a decorative 4 inch border of natural stone. All the tile stores carry these strips but I don't like the stone they used and the price is pretty scary also. I went to my local landscape company and I picked out some local flat river rock that I want to incorporate into my walls and floors. What kind of material should I used to paste the stones on to and what kind of adhesive would work best? My plan is to make the stripes up ahead of time and have my Tile Layer install them.