Designed to work on the new (2018 or later) bodies from Mego Corp.
2 styles of male feet:
Boot Feet, and
Robot Feet
Each set comes with a pair of feet and a pair of ankle pegs in a matching color. Robot feet also come with a pair of "ankle wings".
Available is several colors, and if you need a different color, just ask.
Pair of Male Boot Feet $8 (USD)
Pair of Male Robot Feet $12 (USD)
For the Type-S animal/monster legs from https://www.classictvtoys.com/
Pair of Cloven Hooves $6 (USD)