An advertisement of a Kegel equipment for men claims that hanging more weight to the erected penis while contracting the pubococcygeus muscle will help make it stronger. Superficially, this makes sense to me, since to make any muscle stronger, forcing it work more intense than everyday is necessary. Here is their visualization:
But is there any scientific paper research on this method?
The only article that the advertisement refers to is Pelvic Exercises for Men, Too, which 1) seems to promote the aforementioned company, and 2) doesn't actually cite any paper that seems to answer the efficiency of the product. WebMD and Mayo Clinic do not specially mention about adding more weight to the penis.