Lego GBC Lapras was a challenge issued by one of my children to build a GBC module that looked like the Pokemon Lapras.
To do this I took one of our existing modules a Brickworld Ball Pump (as it had a similar shape to a Lapras) and began the process of theming it to look like a Lapras wearing a saddle.
Some key challenges while building were to ensure that structural bracing (lift arms on the side) were not removed and that the module as a whole still met GBC standard. This meant the input area still needed to be 10x10x10 bricks (length x width x height) and that the output was no more than 13 bricks high by using an output ramp.
Video of this module in operation.