Since my childhood, the countless model building with Lego bricks are fascinating me. Lego are plastic construction toys consisting of interlocking bricks that are used to construct a wide variety of models. Usually, Lego are sold as a collection of different designed pieces and an instruction book that visually describe the sequential building steps of a miniature model.
I always had a great fun using bricks to build different models that you have to imagine based on the bricks available. But this liberty to imagine new models comes with a great frustration when important pieces are missing to build it.