Me and my little brother made this sometime last summer, It was a while ago, I don’t think I ever posted it. Anyways, its called “the mask” where I buy my little brother a silver shamrock mask and knowing the fact that he will die if I put on the commercial while hes wearing it. It was improvised, the whole thing actually, no script even written. It came out pretty good for being done in 15 minutes. 
http://www.youtube.com/watch?v=HnjJ24ZFcXw