HOLLOWMAN2212

Its on a Pen thats what the Black Tube is, it is Made of a think glass, the way it works is by heat from your body, as you can see when I hold it with 2 fingers it slowly goes down, but when I hold it from the bottom it rises up. Merged post follows: Consecutive posts mergedTHANKS YOU "INOW" its a hand boiler YAY!!!!!!!!!!!!!!!!! I'm gonna by a bunch of them. look at it on google. Merged post follows: Consecutive posts mergedhttp://www.stevespanglerscience.com/product/1177

I had one of the big versions of this when I was a kid, but I wanna find the name. please help