Now this is a hoot – the Stud Master is definitely something meant for laughs only and not to be taken seriously, although we’re pretty sure anyone at their wits’ end might try otherwise. The Stud Master is an exercise machine that supposedly conditions the one muscle which no other machine in the gym pays attention to. This is a definite conversation starter, where one size supposedly fits more or less all. The Stud Master retails for $12.95 a pop.