The plot in the feature The Cake General (Tårtgeneralen) circled around a 500 meter (1640 feet) long sandwich cake.
For the close ups, real sandwich cake was made, and for the wide shots, the faux cake created the illusion of a very long cake.
I did a repeating pattern of a top view sandwich cake and had it printed on vinyl. The art department and I then stapled it on top of a wooden form that made a smooth transition to the real cake.