It really looks like the pumpkin things were infected with millions of viral warts and yikes this is starting to remind me of the STD lectures with all the caluliflower groweths everywhere!
*Edit: I've just found online that they actually breed these things specially for Halloween! Freaking gross man! I feel like using liquid nitrogen to burn the warts off! In fact, they even say on the website that "These heavily warted pumpkins and gourds are NOT diseased! They are bred specifically to have the warts. In fact, it has taken over 10 generations of breeding to obtain the size and consistency of warting for these varieties!"