Hey there. I was just wondering how the heck people do this trick where you knot the string up and somehow get it out. Is there a definite name for it? Here are two examples to what I am talking about. And yes, I do understand that they do achieve this in 2 different ways, but just like the green triangle, there are lots of ways to get into it, but it all turns out to the same thing.
http://www.youtube.com/watch?v=NStn3Qun3as (starting at 0:21)
http://www.youtube.com/watch?v=P1vVys5kmhM (starting at 1:28)