This is the 1970s version of the character. The base is the Rhino from the Hasbro Spider-man series. I removed all his pads (knees, shoulders) and painted him. I cut off his horn and remodeled his head with ear fins, brow ridge, broader nose and cheekbones using plumbers putty. I've included a pic of him battling the Marvel Universe series Thanos so you can see his scale.