Jayne Mansfield. I just think that would be a really impressive balloon.
And Rutherford B. Hayes. Just to add some gravity to the parade.
Just to go in the other direction…
Ozzy’s dog Lola and Mike from Monsters, Inc.
How about Homer Simpson?
Or Hannibal Lecter?
I forget to say, I think I’m the only one in the world who absolutely cannot stand parades.
I can’t believe Anna Nicole Smith wasn’t mentioned even THIS early in the thread…
PeeWee Herman.
I’d like to see Simon Bar Sinister chasing Underdog.
The Stay-Puft Marshamallow Man.
The Stay Puff Marshmellow Man
NCC-1701
The big lip and tongue thingy from the Rolling Stones
Oh, no, Honey—I hate a parade! The marching of feet—I hate every beat I hear of a drum!
[I think they already have a Homer Simpson balloon—How about a Mr. Burns one? *Excellent!*]
brian Mulroney. 
OK, it makes me a jerk, but…
me.
I want them to make a skinny balloon about five blocks long, and when they hit 34th St. a couple dozen clowns twist it into a poodle.
DAMMIT! You beat me to it, Joe
I don’t think they could have Jayne Mansfield and Anna Nicole Smith. There isn’t that much helium in the whole world.
Who needs helium? Fill 'em up with hot air from Dr. Phil.
Bender and/or Dr. Zoidberg.
How about The Cheat or perhaps Gidney and/or Cloyd.
LOL!
I should admit that my trachea currently dislikes you…
So sorry, Joe K
I just hate all Tv radio newspaper psychologist wannabees. I may start a pit rant about it.
Here, use my hankie…