Look closely: the spoon and fork are suspended from the table, balancing across a toothpick on the very edge of the glass. I took the pictures, and they were not manipulated in any way. (I should have taken a picture of the full glass, but couldn’t find the right angle). Can anyone explain how it’s done?

EDIT: Here is a wikiHow article on this stunt. Unfortunately, the explanation is not really helpful.
EDIT: I think the center of gravity of the spork-combination must be directly below the edge of where the toothpick touches the glass. Is this true?