Models
Unmanned 3D Printable Models. Makeshape.co have 2 Unmanned 3D Printable Models.
Open Transport Tank – Decorated & Plain
Myminifactory
Dungeons And Dreadnoughts
$5
“Neurobot 1” – Arduino, Raspberry Pi, Linux and ROS educational robotics kit
Thingiverse
NikolayGrigoryev
Free