What, another hydra?
(Hydras are huge and complicated... Not sure I will be doing any hydras anytime soon... Plus, they are not as cool-looking as Tiamat, the coolest-looking multi-headed reptile out there, although she is much bigger!)
The other bad thing about hydras is their having various numbers of heads - I guess one variation would be sufficient, though.
The good thing about hydras is that there are several subtypes, mostly sized the same! So, as long as I manage ONE, I could just do recolors for the others, and voila, multiple icons...