Here's a zombie version of the cute Stay Puft of The Ghostbusters.
Undead Stay Puft Papercraft

The Ecto-1a was an updated version of the iconic Ecto-1 vehicle that the Ghostbusters used to travel. It uses a chassis from an ambulance / hearse Cadillac 1959.
Ghostbusters Ecto-1A Papercraft

Happy 30th Anniversary Ghostbusters! You can download the Cubee models of Ray Stants, Winston Zeddemore, Egon Spengler, Peter Venkman and the adorable Mr. Stay Puft.
Ghostbusters Cubee Papercraft

Here's a cute Stay Puft papercraft by Mike Mcdermott. The Stay Puft Marshmallow Man is a character in the movie Ghostbusters and the animated series The Real Ghostbusters. He was the cartoon mascot of the fictitious Stay Puft marshmallow corporation.
Ghostbusters Papercraft