If you've ever dreamed of owning your own tabletop biosphere, or looking for a fun project either to display in your home or give as a gift, look no further. Here are some resources to creating your own living biosphere .
DIY Amazing Density Tower from Things Found in Your Kitchen by stevespanglerscience: Make objects float in the middle of a liquid with this amazing trick. The idea is cool, but you need a tall glass (a vase?) and lots of each liquid to make it look good.