overlapping tiling

I've been pondering whether to post this idea for a while. The problem is, it's not really an invention, it's more of a design. What's needed is a halfdesignery <cue everyone to link to various sites that fulfil this role>

So the idea is overlapping tiles. The simplest type of overlapping tiling is shingles on a roof - kind of like this : \\\\\\\

But shingles are boring... I want tiles that overlap and underlap each other. So my design uses square saddle-shaped tiles. Each tile is locked in place because it 'underlaps' two tiles and overlaps two tiles.

This tiling might be impractical as a ground covering, but might make a nice ornamental wall covering.

I've shown two embodiments of the ovelapping tiling: first uses thick tiles with spaces between them. second uses paper-thin tiles with no spaces.

This is kind of similar to a trendy wall covering I've noticed recently which uses overlapping circular tiles (I can't find an example on the internet, but if someone can feel free to link to it). EDIT: I've also posted my own rendering of overlapping circular tiles.