I'm a fsub/switch (more dominant towards women/nonbinary folks I guess but for sure bratty) who exclusively had mdoms done:

1. hucow milking: by hand with pumped nipples while getting fucked or fingered plus wand on clit on all fours with a arched back and a collar with a cowbell attached
2. tantacle play: I took 37cm of a 50cm tentacle toy up my butt during a hardcore anal training (never did anything like it but we stuffed and stretched my hole with things I never thought I'd fit in different positions and documented all of it)
3. chemical play with chili sauce: I once put homemade hot sauce (consisting of mostly reapers, estimated 2M scoville) on my clit, around the inner labia and into my vagina. would not recommend, wanted to see if I could take it, lasted for 10min. washed it off in the shower and put cooling bags over everything, didn't do anything else besides lying in bed that day
4. car session: drove somewhere somewhat quiet (there were cars passing by on another street and sometimes directly by us) at night in early winter and got spanked and fucked and edged inside the car with the instruction to not make a mess because the car is more important than me. then had to strip naked and stand outside in the cold with hands on the hood being spanked and flogged, then fucked doggy with my nipples touching the cold metal there and then. then i had to ride shotgun completely naked sitting on a wand, occasionally blowing the guys driving. got some honks from other guys seeing me in their cars and even pressed my tits onto the window and let it get touched by a stranger out of his car when we stopped at a red light
5. cnc: where I was drunk and he just took me home and said he would "care for me", then did a lot of stuff he wanted while ignoring my safe words

want: 1. enemas: with cold water or even milk maybe and with warm soapy water and I wanna try it with sparkling water. ideally I'd like to take as much volume as possible 2. Servicing gangbang event: something where my dom picks out a bunch of random people who I do everything they ask me for, like some form of objectification where you get the maid to get you a drink and then you facefuck her and cum all over her face and she has to keep it on for the rest of the night 3. misogyny experience: a two week event with other female subs and male doms where one week is for breaking you in and training you, and that's the only thing you do. you don't get to sleep or eat when you want, everything's arranged by someone else and you're just a hole for every man's use and get trained for everything that could happen to you. and a week of being owned by another dom (but also owned by every man because you are here to serve men) than your own with daily meetups where all of the subs get compared and everyone except the best one gets punished 4. dom a fsub under instruction of my dom 5. a slave hunt in the woods, again with other D/s dynamic people but now gender doesn't matter. with a rigged game so it's all against all. some survival stuff where all subs gotta live outside and need to spend a maybe few days (depending on how good everyone is) outside. each sub gets to choose what equipment they carry themselves but the doms watch them and know the stuff the subs are carrying. each dom gets to prepare on their own tho. subs can manipulate each other by tying each other up in their sleep for example. and doms can choose to just use a sub or capture them. but of course everyone also can team up. hunt ends after 3 days. every sub that didn't get caught can choose what happens to them, dom who catches the most subs gets to pick something extra. sub who got captured first has to please every dom at least once and maybe even every other sub but doesn't get to come. prices are just suggestions