Having gold fish in your home or office is great for your feng shui. I’m not so sure about keeping them in your toilet tank, however. Check out deMILKED for a wonderful post of 14 of the coolest and most unusual fish tanks you’ll ever see. Pictured above is the Fish ‘n’ Flush and below is the Infinity Tank. The others include a sofa tank, a sink tank, and some very unusual designs you won’t want to miss.