The ocarina ( /RkY�rument. Variations do exist, but a typical ocarina is an enclosed space with four to twelve finger holes and a mouthpiece that projects from the body. It is often ceramic, but other materials may also be used, such as plastic, wood, glass, clay, and metal.
I have searched high and low across the Internet and found no instructions on how to make an ocarina other than clay.
So as far as I know this is a first so bear with me.
here is a vid of how it sounds.
Step 1: Tools and materials
(1) 6" piece of sch 40 1 1/4" PVC
(2) 1 1/4" plugs (I had to use a reducer and a plug)
Possibly CA glue ( crazy glue) , I didn't need it
Sand paper 100 and 220
1/2" & 1/4" chisel
unibit or drill bits
Step 2: Modify the plugs
And yes clean up the cut part with a file or some sand paper.
Step 4: Marke the window and fipple
Step 5: Making the fipple
then make the 1/2" X 1/2" square into a ramp with the apex at about 1/64"
Step 6: Making the airway
then use a chisel or 100 sandpaper or a file and file the side that you drew flat (indicated by the red lines), it should be 1/32" deep
then about 1/2" down carve a deeper ramp as indicated by the blue lines and red arrows.
then sand with 220 to make is smooth