Fruit Fly Trap

A trap designed to capture fruit fly. Its designed in two parts, the bottom piece you will fill with vinegar(fruit flies love the smell of vinegar). The top piece contains multiple layers, on the top layer four holes for them to enter. the second layer contains a funnel and a tube entering into the cylinder. the fruit flies will enter the container to get the the vinegar and will then attempt to fly up to get out. fruit flies will always search the highest point for an exit so once they enter they wont be able to get out.
The top and bottom piece should be "machined" to fit together perfectly with no gaps when printed. This will be handy for pet cages and around the house!
Make sure you do not fill the bottom piece with vinegar as to cover the bottom of the tube. This is my first design so I'm open to suggestions!