i will be germ just like i learned in forth grade. a cup, a paper towel and some water. i start by folding the paper towel into thirds. i roll it into a tube and drop it in the cup. i then spread it tight to the sides. i add about an inch of water and roll it around to wet the paper towel. the water is just a bottle i keep on the desk for filling bongs and what-not. it has been filled from the tap and has been sitting on the desk for at least a month. there is stuff floating in it. after wetting the paper towels i use a small paint brush handle to move the paper towel away from the edge. i drop in a seed and gently press the paper towel back against the side. then i make sure the bottom of the cup has an inch of water in it. i then place it on the shelf above my desk. i will check often and add water as needed. in the past i have had problems letting my paper towel dry out when i would use a plate. this is why i have gone to the cup method.