on the curator's desk. >> every week, she shows her faithful following something from her collection and they do their best to identify what it does. if you guessed a jar of skin, you win. now i have great honor of making a guest appearance on anna's show. >> this is our first mystery object. you can see it's got a spring and a little depressed area. so what do you think this would be used for? well, mike, how about you? give it a go. >> hello. what is that thing, by the way? >> that's the point. you have to try and guess what it is. all right. i'll give you a little hint. this part of the object is meant to be inserted somewhere. this part is not. >> it's like some sort of unholy coupling between a slin key and a tuba. >> this has medical purpose and does good work. >> there's two possible places. you can't get in your ear and never fit up your nose.