Hehe, using the word "tone" there, as saying it doesn't make any sound would be an exaggeration. I did get a lot of hiss and wheezing out of it ;), but not anything resembling a stable note, even remotely flute-like.
After following instructions and tutorials and whatnot, this still won't budge. I guess my nose is incompatible with it - however, the shaping of the wood, and all such, is totally okay. It just... doesn't work (at least for me).
Someone did mention in a review they needed to modify this in a DIY fashion, carving it and so on, in order to hear an actual sound out of it. I need to try this at some point. Ultimately, though, it's a novelty instrument, and... using an extensive amount of time on trying to fix it and use it... well...