[jafl5272]

http://www.simplyphysics.com/flying_objects/acetylenetorch.h...

[anthonyb]

and http://www.simplyphysics.com/flying_objects/Chair_Removal.fl... to give you some idea of how hard they "suck" - that's two guys (one with a lever) plus some sort of strapping so that people in another room can pull too.

[jonsen]

Takes an iron man to do it. He is in the other room ;-)

[joezydeco]

Here's a steel bottle getting sucked in

http://www.youtube.com/watch?v=7g5UVrOt2CI