You can use top hat lid's in a 5 gallon bucket, with an air-stone, an air pump, some grow medium such as rockwool cubes, expanded clay pellets, coco-coir or large sized perlite and some quality hydroponics nutrients and make your own hydroponic system. You could also get a small water pump and make a drip system or some 1/4" nylon rope and make a nice wick system using these lids