Step 5: Add the Elbows and Beads

Picture of Add the Elbows and Beads
Make a square of your 4 pipes using the 90 degree elbows.  Before you put the last one on add your beans, beads.

NOTE:  you really have to try coffee beans.  They make a nice sound, bu mostly they smell great in your instrument.  And I think coffee comes from places in the world that rain a lot, so it's poetic.