Therefore, the owner of the lens did not have any idea that there was someone living inside the lens. I found this quote when searching on how to clean lens fungus. Not that I have found any on my lenses, but a very interesting lense just turned up but with some fungus. Read more on lens fungi and how to remove them.
Wanting to get a different sound from my cornetto, an oboe playing friend of mine and I mounted a reed instead of the regular mouth piece on it. I wanted more of a crumhorn sound but ended up with something that sounded fantastic on every 20th try and otherwise was really hard to play. Lots of strange sounds coming as well. But I like the idea. Here are the photos. First the reed, then two full-length versions of my Moeck cornetto with the reed and finally the normal mouthpiece.