Here’s Charlie Hind playing a familiar tune on the double ocarina. I just ordered one. This is pretty amazing!
I started playing tin whistle last September, and later in the same month I got an ocarina. What I didn’t expect was that in a fairly short time the ocarina would take over, but it did. I think part of the reason is that I’m just not that steeped in ITM, and my musical interests tend to wander. There’s also the fact that this ocarina anyway (Mountain) can go anywhere with me, and the instrument I have with me is the one I’m going to play. And even though the range of the ocarina is very limited, there is something satisfying about its sound; I don’t really understand why that is. Anyway, I’ll close with a shamelessly self-promoting video: http://www.youtube.com/watch?v=5-WEV8xsguY.
ubizmo
Ahhhh…weedhopper, you are mistaken! The Ocarina of the Orient is made in double and triple vessel styles and can play a full chromatic 3 octaves. here is a Master Shaolin player… 
An American Master…
I know what you mean, ubizmo! The ocarina is the new (newest?) love of my life too. 
If you find that you’re running out of notes, check out the double and triple ocarinas. They have two and three octave ranges, as Thomas says. The doubles come in two varieties. The one I bought from Charlie Hind (above) is a harmonic double. The two chambers each have a one octave range, but are a fifth apart to play harmony with each other. The melodic version has two chambers in the same key to give an extended range. It can play a couple of harmony notes, but it’s really about just having the bigger range for melody. The triples can even play a couple of rudimentary chords, but are really about a three octave range for melody. With a triple, there’s practically no tune you can’t play.
Take a look at STL ocarinas to see some really nice ones. Here’s the triple that I want to get next:
http://www.stlocarina.com/triple2.html
I also like the Mountain Ocarinas. They play very well and are nicely in tune. I like the way they’ve brought modern technology to an ancient instrument.
I’ve looked into the various doubles and triples, but the one thing that holds me back is: clay. As I mentioned above, the thing that really works for me is having the instrument with me all the time, and for that aspect the Mountain oc is just perfect. I’m reluctant to pay $100 or more (potentially much more) for a fragile clay instrument best left at home. The Hind double is primarily a harmony ocarina, not an extended range ocarina, but he certainly makes beautiful instruments. Mountain has an extended range ocarina in prototype (http://www.youtube.com/watch?v=zugeb22WfnU) and I’m hoping it won’t be too far off. Two octaves would be plenty for me. As it is, I’m having a great deal of fun doing a kind of oldies hit parade on Youtube. The range of the single Mountain ocarina isn’t that different from the range of the typical non-classical singer, so a lot of things that can be sung can also be played (after transposing).
Ubizmo
I know how you feel about the clay. I’ve managed to destroy two mandolins by dropping them on a hard floor. The $300 - $400 clay ocarinas would never survive on stage with me. That extended range Mountan Ocarina sounds really promising though.
You may want to check out this site also. http://hindocarina.com/ I’m saving up for one of his double ocarinas.
Gary
Hi Gary. Yeah, they are cool! Mine arrived a couple of weeks ago (I got the double one). It’s great fun! I’ve nearly got Amazing Grace down (the tune on the video in the first post). It’s a very challenging instrument. While it has a limited range - only an octave - playing harmony with yourself is really cool. I hope you get one soon and have as much fun as I’m having!
Oh, I also bought his tenor ocarina in F. It’s the same physical size as the double except that it only plays one note at a time like a regular ocarina and has a range of a tenth (an octave plus two notes). It has the same fingerings as the Mountain Ocarinas except in a different key and it’s made of walnut. Charlie’s instruments are beautiully made and have a very sweet tone compared to many of the ceramic ones. I hope you have a blast! 
I recently bought a double “penant” style double (made in Taiwan).
This ocarina has the range of two octaves. Here is a video about it. (not my video)
http://www.youtube.com/watch?v=Dt1jI7wd-jQ
There are other double pendant-style ocarinas out there. John Langley (UK) makes one where each chamber is pitched the same, so the range of this ocarina is one octave. Terry Riley (UK) makes two versions - where the chambers are pitched a fourth and a fifth apart.
There are quadruple ocarinas, too.
That’s pretty. I have the plastic Zelda Ocarina and can’t wait to take it on the lake canoeing. I know what you mean about the dangers of clay.
Wow, I didn’t know there were Zelda replicas made in plastic. Who’s the maker?
The only replicas I’ve seen are made of ceramic (Clayz, Songbird, Spencer Register).
Here is the link. Mine is in blue. It’s not a true Zelda replica. Love the avatar.
Thanks! 
How do the top notes sound? Are they clear or airy?
Airiness is more common in 10-12 hole ocarinas. 
Sometimes it sounds a bit airy, mostly it nails the high notes fine. This is the only ocarina that I’ve ever heard in person and it sounds a bit too much like a space ship is landing.
It’s incredibly loud too. I mentioned this in another thread how loud this ocarina is. Sometimes when we walk the dog, I’ll play a harmonica or a Susato VSB whistle and folks might mention to me that they thought they heard some music. When I play this ocarina, people tell me they were watching their TV and they heard me coming. I play in a folk group at church with an amplified keyboard, 12-string acoutic guitar, and electric bass, and sometimes they say this ocarina (unamplified) is too much. (With the folk group, the ocarina works if a song calls for a pipe organ kind of sound.)
I bought a Focalink AC (Taiwanese brand) from Songbird ocarinas last month. (He recently became a distributor) I wasn’t expecting a whole lot; my experience with “commercially” made ocs has been that they are airy in some degree on the high notes. The one I bought wasn’t. No spaceship landing.
Have you ever tried the “Acute Bend” technique? On the top three notes you bend your neck so the “bottom” of the ocarina faces your chest. There is a discussion about it on http://theocarinanetwork.com here: http://theocarinanetwork.com/topic/101541/1/ I think it’s members only, so you’ll have to join in order for it to be seen.
I’ll take a look at the thread. I have noticed that I tilt the ocarina to the side, the same as a whistle, and the sound is more consistent. Wouldn’t tilting the ocarina serve the same purpose as tilting your neck and be a bit more orthopedically easy?
Hi Kittee,
Can you tell me about the fourth chamber on that quadruple? The bottom one looks like the STL clay version. What notes does the fourth chamber play? It kind of looks like an extra note or two tacked onto a triple ocarina. IIRC, that adds like $100 to the price of the triple. That seems like a lot for a note or two.
I’m no expert on this technique. If tilting works and is more comfortable, then that would be the way to go.
Yes, the bottom photo is from STL’s site. I have no personal experience with this ocarina, though. 
link to quadruple ocarina
link to triple ocarina
According to STL, the triple’s range is almost three octaves (A4 to G8). The quadruple is three octaves (A4 to C8). That makes the quadruple’s range three notes (5 chromatics) more then the triple. These both are priced the same with a sale price.
I’m an old man kittee, my body has limits. What kind of music are you playing on the ocarina? Why did you start playing? I first got tempted by the ocarina when Walden started a thread about making a paper ocarina. I built one that looked pretty good. Different fingerings made different kinds of asthmatic wheezing. Then a boy my wife babysat when he was little asked for one, so I got all the kids one and me too. He wanted to learn the Zelda songs. When I play my ocarina, younger people recognize the sound as “just like that music in Zelda” some may know it’s played by an ocarina but none of them had ever seen an ocarina. They’re fascinated.
I became interested in the ocarina back in 1983, when I got a 3-note whistle as a gift. A friend and I got some clay and tried to figure out how to make one. All our efforts were 1-3 note whistles. Neither of us knew that there was a name for these besides a “whistle.” There was no internet back then, but even if there had been, we didn’t know what to search for. We found out by accident in a pottery class - the teacher saw our efforts, and showed us a humongous ocarina he’d made, and told us what these thing were called. After that, finding information was a lot easier. Nowadays there is a plethora of ocarina-making tutorials as web pages and Youtube videos. I wish these had been available back when I started; it took me years to learn to make an ocarina with sound that my cats didn’t run away from. lol I am more of a maker than a player, which isn’t saying a lot. The only things I play are simple hymns, which I usually manage to flub up. I find then fascinating - many are quite beautiful - a combination of art and music.