After 3 attempts and strict instructions on decorating preferences from the birthday boy, a birthday train cake was finally produced.
Sherrif Woody played train guard for the day and I discovered the joys of disposable piping bags (rock n roll huh?). The winning formula turned out to be a madeira cake mix from the ever so sweet Mary Berry. But the ratio of icing to cake was a tad on the low side, so I'll be practicing my piping skills before attempting the next one. I foresee many a train cake in my future (unfortunately).