This great video by SerpaDesign shows a good tutorial into building a closed terrarium. Why not create a micro-oasis for your work table?
Drop by Drop is a fascinating plant based water filtration system by Pratik Ghosh. The proof of concept can filtrate a glass of water in 12 hours. The biology and the scalability prospects of this ”mini biosphere” are very interesting. Be sure to check out the more detailed project description on the Kikando web page.