We've had our floating shelves in our living room, for well, it seems forever. Maybe 10 years or more, absolutely nothing wrong with them, but I felt like they're slightly dated.
This was how they looked. Like I say, nothing really wrong, I just felt they looked harsh.
Simon, took them off the wall, and down to his workshop, where he fitted architrave around the outside edges, with wood glue and nails.
All done, and back in place.