Puff Adder is a mutant who can 'puff' up his body and increase his strength. He is a long-time member of the villainous Serpent Society,and usually fights Captain America.
Oh man! This guy has been on my pile for SO long! I don't like sculpting with clay, so I couldn't figure out how I would convert Rhino's feet. I finally came across what I thought might work. It didn't(!), but I was committed. I just cut off the Rhino toes, reshaped them, and glued them back on, retaining the articulation. A lot more cutting and sanding, then a thin strip of rubber around the bottom finished the feet. The snake helmet came from a dinosaur toy. I shaped it to fit, and repositioned the eyes more to the front.
It'd be great to hear your comments.

thanks,
TommyX