The bentwood pieces gave the apparatus the curve. I attached a toner deposit with holes drilled in the bottom to direct the flow of water down the curved incline to produce the waterfall effect.
I attached the apparatus to a base that consisted of a wooden tray and a green plastic crate. The tray spanned the width of the table and was duct taped to the lip of the table. The green plastic crate was then taped to the tray.
Because this was such a good base, I could not pass up the opportunity to add more things to the base on the opposite side of the waterfall apparatus. The crate allowed me to set up some PVC pipes on an incline and the holes in the crate allowed me to thread some flex tubes into a simple tangle inside the crate.