Toilet Waterfall Wall = Art???

Now I'm all for thinking outside your creative sandbox and recycling household and everyday items and making art with them is awesome but recycling toilets? Even using new toilets for art... or artsy-ish projects seems a little... dirty?!? It's an interesting idea in theory but in real life a toilet waterfall induces more cringes than ohhs and ahhs.
One thing is for sure if they want to keep this wall art clean they're going to need an awful lot of scrub brushes and bleach.. unless they think the natural erosion will add to it's uhh... toiletry ness.