Alright this might be one of the most degenerate coomer subreddits:
/r/GrowYourClit Perhaps
most surprisingly this does not involve MTF troons. Anyway through methods like I described above, as well as hormone creams/direct injections you can get some sizable men in the metaphorical boat. The subreddit creator and prolific poster
The Euroslut is a prime example of how far they will go. In addition to dangerous and insane methods, she is also a fan of hard drugs and rough play. Probably worth a post in the porn-cow thread if someone wants some glory to steal. Some notable examples:
Dosing Compilation:
Proof that an undersized dick really is one step away from an oversized clit:
Stills:

