Trolley
Created by ThePlanetMike
License: CC BY 3.0
http://www.thingiverse.com/thing:20802

Truck
Created by madscifi
License: Public Domain
http://www.thingiverse.com/thing:9710

Octopus
Created by yeoldebrian
License: CC BY SA 3.0
http://www.thingiverse.com/thing:7900