One new one I love are the Norton Security ones. They are web ads, yet they are hilarious I've seen two. Same concept only different ways of saying the same thing.
Ad 1: FEatures a big green Caterpillar on a plant on one side and a big tough street fighter on the other.
-Narrator- "Imagine this caterpillar is your PC. It is weak and unprotected. Now imagine professional street fighter (forget the name) is a virus. He wants to hurt the caterpillar. The caterpillar responds in typical caterpillar response by eating a leaf. Will you deny (street fighter) access to the caterpillar or will you let him hurt the caterpillar?"
You have the option of selecting Allow or Deny. Depending on your answer you get the following:
-- Allow - Street Fighter prepares to use a weed whacker on the plant the caterpillar is on.
-- Deny - Street Fighter hauls back his arm to punch the caterpillar. Caterpillar raises up and shoots laser beams out of his eyes and slices off the guys arm which falls to the floor. Caterpillar returns to eating a leaf.
The other features Dokken and a uncooked whole chicken.
--Allow - Group stands around the pedestal the chicken is on and give a pelvic thrust at the chicken which explodes ala a flash pot explosion.
-- Deny - Chicken stands up and holds a knife on the group causing them to back off.
God I hope for more of these goofy ads. I love em..
EDIT: FOUND THEM!!
Dokken Vs ChickenCaterpillar Vs. Street Fighter Kimbo Slice