Anyone know what the oil cans are?

[kresty]

I can get you one or more from Amazon.de

But due to parcel size shipping them over the pond would not be cheap.

The more interesting thing is the size.  If you happen to see one in an automotive shop one day, the distance between the 0,5L - 2L marks (or other obvious height measurements) would be interesting.  From this photo it should them be pretty simple to get close with the droids dimensions.