What is the name of this episode of King of the Hill that I saw?

I was watching an episode of king of the hill where Bobby and the little asain friend placed a huge firework on what i want to call either a clown or a italian guy holding a pizza im not exactly sure of the details but the firework ends up being a dud but the anticipation grows and grows at the end wondering if it is going to blow. but i was curious the name of the episode? if someone could help me please