Two-Note Flute
to make it you have a jug or bottle.
Get a Glass Jug or Bottle
This works well with a wine bottle, olive oil bottles, large glass jugs, and any other glass container with a skinny neck.
Bore a Single-sized Hole in the Bottom
Use a glass cutter to cut a small hole in the bottom of the bottle or jug.
Blow Across the Hole That Is Already in the Top of the Jug
Position your lips so that you're blowing horizontally right over the opening. Keep blowing until you get a clear note. This may take a while, so be patient and keep practicing.
Cover and Uncover the Hole on the Bottom With Your Finger
Do this as you blow, and experiment with the different sounds it produces.
Try Tilting Your Head Down and Up to Make the Note Sharp or Flat
keep your head down and up to make it sharp or flat.