Mutant Things

[Tetsubo 57]

Images to fuel your players nightmares:

http://artorder.blogspot.com/2010/04/mutation-nation-challenge.html

[Greenish]

Most of those wouldn't look out of place next to "normal" monsters. Flying shark, meet ground squid.

[Starbuck_II]

I like the Blowfinch.

[hamishspence]

I recall a series of animals, photoshopped to join different ones together, done so well that the join is invisible (or nearly so)

Anyone remember seeing that sort of thing?

http://www.hemmy.net/2006/08/29/photoshop-animal-hybrids-galore/

These weren't the exact ones- but they do capture the concept.