Christmas Rail Car 10

This is rail car number ten in a series of ten, one published every two weeks until Christmas. This O gauge car (wheels, axle, coupler and bed are all 3D printed plastic) is part of an active train.
http://youtu.be/iCsqZGqd-Vc
For the genuine train fanatic, this has a hook and can be placed on the Christmas tree as an ornament--as well as used in a train set.