My take on a Cordon DD4 using Wild Boar Fell's 3D print. The material really lends itself to butchering, flexible, yet strong and fun to work with.
Regards,
Stefan
Just plug it in, and you're ready to go?
http://www.ebay.co.uk/itm/Triang-train-controler-/321584185087?pt=UK_Trains_Railway_Models&hash=item4adfe93eff