I didn't understand the last part. What was he doing?
Somehow these remind me of an old "You asked for it" show, where a Blind one armed man sclupted his arm. (Can you guess how he did it?)
I have yet to figure out the last one as well. I believe that it is the "tongue extruder". I would also never want to have to use that item. Just watching him use it started up my gag reflex. It looked like a horrible dentistry machine (no offense to any dentists out there).