Maybe a laser cutter could reproduce this?
If you ever need to create a vacuum but can’t find a vacuum pump, there’s a neat trick you can use in order to turn an air compressor into a vacuum pump, using only cheap and easy materials. As this video from GREENPOWERSCIENCE, this technique can also be used in order to spray liquids even if it contains particle that would be to big for any normal sprayers nozzle. GREENPOWERSCIENCE Used this very technique to turn styrofoam into spiderweb and you can watch how here: Recycle your styrofoam!
The siphon effect is a very interesting one. It is a normal part of your life, because every time you flush your toilet, it uses the siphoning effect. And when your gasoline powered lawnmower is out of fuel, you may resort to draining some gas from your car with a hose, again using the siphoning effect. mist8k has added to the possible uses of siphoning by making this excellent scientific demonstration. Here, the siphoning effect is used as an extremely simple on/off valve, controlled by the level of the liquid. Fill the container and nothing happens. But fill it too much and ALL the liquid will drain out, not just the excess! This solution could be a great way to make a reliable security system that dumps out all the liquids if a tank is in danger of being overfilled. No control systems required!