Canada's Sonomax has an ingenious new line of custom fit in ear monitors. The neat trick is that the end user is the one who sets up the custom fitting. This is done by injecting silicone into a balloon placed inside their ears. After just four minutes, they are left with a uniquely formed set of ear monitors that are to be worn by just one person.
Sonomax custom IEMs should be available across North American retailers this spring, for $199 (dynamic driver) and $299 (dual armature).
So if you like to stick things in your ears, then you should love these.