1 ea "Adjustable Height Wire Hanger Bottle Hanger"... see Wire Hanger Bottle Hanger
... or other suitable support mechanism. See that instructable for a separate list of materials and tools and step 2 of this instructable for a photo.
1 ea 2L pop/soda bottle
1 ea 4 inch dia. margarine or yogurt container w/lid
1 ea toilet tank...rest of the toilet optional...
Flexible tubing as req'd to interface with the tank hardware and create a sprinker/shower head inside the "grow chamber". Because I had a variety of tubing, I was able to something up using the following..... 2 ft of 3/8" OD vinyl tubing
4 inches of 1/4" ID x 3/8" OD polyethylene tubing (it's stiff and it melts to itself)
1 inch of 7/16" OD vinyl tubing (cut into 4 O-rings to act as ring clamps)
2 inches of 7/16 " OD vinyl tubing (coupler)
1/16" and 5/16" Drill bits
Pliers to bend coat hanger as req'd by mere mortals (2 pair)
Side Cutters to cut tubing
The need to flush at least twice a day doesn't hurt either. Actually, it's essential.