It's totally unprototypical to be sitting in the siding at Beddgelert, for lots of reasons, but this model of one of the FR's former oil tank wagons counts as one of my favourite things.
The model was a challenge to make because I had to kit-bash a plastic kit for a vintage road tanker - from Cooper Craft if I remember rightly - to get the distinctive oval shape, and then scratch build quite a complicated chassis.
The bogies are also home made being a very unusual Polish design which the FR acquired a number of once, and for which I could find nothing similar on any N gauge wagon or carriage.
It also makes very creative use of waterslide transfers to represent the livery carried by this vital, yet unsung, fleet of waggons which have now passed into history.
Can you see how the word oil is made to look like a loco?