Sources for Spined devil dnd 

Barbed Devil by Daniel Merrill (http://www.thingiverse.com/thing:3446853)
Ghost Bat (http://www.thingiverse.com/thing:1095980)
Devil Horns (http://www.thingiverse.com/thing:232048)
Neptune Trident (http://www.thingiverse.com/thing:410536)