Take a 2 liter bottle and cut the top off. I made my cut so that I took it off the bottle just where it gets the largest in diameter. This makes a funnel like shape. I did the same thing to a 16 oz water bottle. The bottle is a thinner plastic. I also cut a strip of the plastic out of the body of the water bottle.
The plastic ‘strip’ I twisted into tube that I slipped into the mouth of each bottle to create a tiered effect. This also provides a bit of a smaller diameter to the mouth of the bottle, so it will make a better fit on the pump. This is still a very loose fit, but the water pressure is enough to make the water flow well.
I am using a plastic bowl. It is not the best solution, but it works pretty well. I dug a hole in the pot I am planning to use for one of my plants when the cuttings get some roots. Into the bowl is a pump, and a collection of rocks.
I put a ring of stones around the bowl to try to keep the soil from falling in. I have reconfigured this little fountain now at least a dozen times. I am not happy yet with the rocks. I am thinking of getting something other than rocks for the inside. I need them to hold up the plastic bottle tops. I am thinking that if I get some tubing that would actually fit the pump I can not use the rocks, and put something interesting, in it, and possibly some LED lights.
Making the best of a small space. That is basically what this fountain is all about.