My favourite modeling projects have generally been in larger scales. The locos on this page are scratch built from sheets of plastic and run on Playmobil track in the garden. They are battery operated and are fun to watch in the summer months.
This first loco is based on a Garratt articulated steam locomotive. One very similar to this can be found on the West Highland Railway.
Next up is a Class 25 diesel locomotive, each of these locos run off 3 AA battery cells and measure around 24' (600mm) long
Next is a Class 20 locomotive, each of these locos took around 3 months to complete in spare evenings