This is a large print. Lots of Filament. Lots of time. recommend downloading and slicing yourself with your desired settings. I recommend at least 4 walls and 5 tops layers.

I used a 5v LED Strip and a USB mini water pump. Many can be found on amazon and aliexpress for cheap. The small round ones. That along with a 3-4 inch piece of tubing that fits on the pump. This gets pushed up into the fountain from the bottom at the back. Without the hose there won't be enough pressure from the pump to reach the top. I cut the usb end off the pump, and soldered 2 wires to the LED strip, ran them down through the body. connected them to the pump wires than soldered those two to a usb cable i cut the micro end off. Glue the top cover on over the wires. Print the light diffuser out of a transparent material, glue into place with a clear drying glue such as regular gorilla glue. CA glue tends to leave a white residue/stain.

This isnt too refined but feel free to modify it and make it how you want. This was mostly a project i did for myself but a couple people asked for it to be uploaded so here it is.