i was thinking to have clear pebbles on grey background that I can do on my own!! ( it must be hard to do it one by one since you mentioned ready made tiles which I saw in Home Depot!!
I want to repaint the kitchen and maybe install a frugal backsplash. My walls are that textured drywall and I'm not sure a peel & stick tile will work.
Are you going to use the one from your yard ? They are also mesh mounted that is easier to install at local tile stores or Home Depot