I used a galvanized wash tub to make a water garden! Just set the potted water plants in the water, anchor them with stones, and fill in with floating water plants. Remember to put in a mosquito dunk every month or so during warm weather! See more at
http://ourfairfieldhomeandgarden.com or
http://pinterest.com/barbrosen/
Imperial Taro: http://www.bonniesplants.com/my_pond/images/...