On Wed, 30 Nov 2016 05:32:06 -0800 (PST), Offramp
wrote:

There is a big lump of aluminium at Euston that everyone is refusing to take ownership of. It depicts a rabbit sleeping under a game of Tetris. It is by the same Scottish geezer who did those clever pictures made of tiny tiles at Tottenham Court Road.

The huge lump of aluminium is titled Piscator and it is rotting, apparently. I didn't know that aluminium rotted, I thought it - dissociated? Sublimated?

This might be a clue:
"A hybrid of mechanical and organic shapes, it is made from cast iron
with an aluminium finish".