My husband made me one out of an old coffee can, the plastic kind. He went to Home depot and got a valve thing so it could be regulated. I know you can also get cheaper plastic ones at a pet store that sells fish supplies. Anyway, this way you can regulate your drip. Try using a plastic cup first and make a very tiny hole. You will be surprised at how fast it drips. Make sure that it drips into something at the bottom. I use a plastic tupperware type container with a screen clipped in place so my cham can't fall into the water or try to "walk on water". They are nosey things and will poop where they're curious.