Hey I saw a while ago david blaine on last call with carson daliy and I was wondering does anybody know how are where I can learn that illusion when he takes out his heart?

I would think that a search would probably tell you a lot. I did not see it, so I can't give any real insight.

This trick makes your shirt and the floor dirty *g*
but as always with blaine, the trick is very simple but he knows how to make a great show out of it.

Not a good trick. Just a gag. requires makeup, glue and tons of Latex Rubber,..

Yea, it is a modified version of the ol spirit healer effects where the shamen removes tissue without breaking the skin of the patient. More than anything it is an optical illusion in the folds of your flesh.