High Impact Levitation Magic
Coil up your neck-tie (or borrowed) and put in on a tray.
The neck-tie begins to levitate slowly and becomes animated!
The tie looks like a cobra snake rising to strike out to 18 inches high!
Turn the tray sideways so everyone can see the end of the tie hanging like the tail of a cobra.
Finally the tie slowly settles down to the tray.
Return the borrowed tie and take your deserved bow.