This giant hunk of metal was graciously sponsored by the local transport systems. Meaning, a huge amount of metal trash and rusty junk had a few years time to coalesce to one giant metal piece of art.

With only marginal cuts and some welding, this massive troll of trash was arranged to a somewhat humanoid/goblinoid form. A few old servomotors for general movement, a transmitter for remote control, presto.

Unfortunately, no amount of water or oil can keep it from overheating regularly, which might be a reliability for, say, construction work and the like.