A “fumigated” ocarina
http://www.ebay.co.uk/itm/12-HOLE-ALTO-C-RETRO-STYLE-CLASSIC-FUMIGATED-POTTERY-OCARINA-FLUTE-MASTERPIECE-/261087459092?pt=UK_Woodwind_Instruments&hash=item3cca067714
… in case you have a problem with mosquitos 
Yep, classic “lost in translation” 
At songbird, they call that ‘straw fire’ since they… Fire it with straw in a box.
I had one, but had to eventually sell it. They do warn you of the weird smell, but it never went away for me me, even after 6-7 months.
if you look down the group of pictures on that ad you’ll see a raw clay ocarina wrapped in bits of straw, ready for the firing. It’s the straw that gives the two-tone finsh. ‘Fumigated’ is a bad translation referring to the smoke from the straw that gives the color. It’s an interesting look but it does have an odd smell.