Mobile modular homes are a huge hit right now. Several architects and entrepreneurs use shipping containers as both platform and premise, while others utilizing traditional wooden boards to construct DIY houses. Learn more about Zetti on YouTube. Zettl is a visionary example of DIY construction. Zettl is a DIY solution, where you can collect and build your own small wooden house with year-round insulation in one day. It is also easy to pack up again. Lars Stenfeldt Hansen, an entrepreneur in his own right, has long dreamed of working in construction and sustainability.  Before Zettl, Hansen...