After I worked out Mario and Luigi, I got another idea. Around this same time, I worked out how to make some bulkier wrestlers. Specifically, Earthquake, Typhoon, and Vader. I realized the body type was perfect to make a Wario. So I started into that endeavor, and wow, was I satisfied with the end result. Then it was time to somehow figure out Waluigi...

Entirely built on Hulk. Heavily sanded down the legs, sculpted them smooth, then cut and resculpted the feet into the shoes. Heavily bulked up the body for the size and overalls. Sculpted on the gloves, as well. Head was completely resculpted into the proper Wario face and hat. Full repaint, and all done!