Head Pictures - Photoshop Pix
Two Headed Sheep pictures - 2 Headed Sheep, one in the front, one in the rear.
2 headed dog pictures - 
Butt Head pictures - 
Two Headed Lizard pictures - Two Headed Lizard / Kind of illusion to the eye as well. Neat blend.
Two-Headed Donkey pictures - I'd like to know how all these two-headed animals go to the bathroom. / Kind of illusion to the eye as well. Neat blend.
Two Headed Snake pictures - 
Heads pictures - Look closely..it's a guillotine
Invisible Head pictures - He's Just Not That Into You / At least she doesn't have to worry about smelling his bad breath.
Two Headed Pig pictures - / I like the effect of black & white, but it looks more like two pigs...one behind the other.
Zidane headbutt pictures - Maybe Zidane should have focused on the game not impaling people. In this shot we actually see him disengage his upper body and shooting it through an Italian player. / Rumor has it Zidane is actually an undercover Superman / Lol. comes outta nowhere with the speed of superman, ouch