Hey, I'm trying to replicate this fountain to some extent:
The candle has a hole through the center, water pumps up, out and down, and the candle glows from LEDs buried within. I have a good plan for how I want to make the circuit - just an AVR controlling 3 rgb LEDs. I will also use either a transformer/rectifier setup for 5v DC, spliced from the pump's AC line, or I may buy one of those switching supplies.
The LEDs I can bury in the wax, but everything else is pretty dangerous around water, the AC especially. What would be the best approach for this design? I've considered 3D printing the insides, I.e. one compartment for electronics, one for water. What's your take?