I'm a tad new to self-bondage here... Hope these Qs dont sound as newbie-ish as i think they do

don't worry about that! quite a few good questions, i'm looking forward to see some other responses to these.

Firstly, I've tried using plastic clothespegs as nipple clamps,

I love clothespegs. Yes, they leave that groove, it'll go away as the skin expands... kind of like if you lay on a textured rug, and when you get up, you have the texture embedded in your skin... and yes theres intense burning and such when you take them off, thats the blood returning to the area. As far as numbness.. i've never felt numbness involving clothespins? Generally, for me anyways, the pain just grows the longer htey're on, especially if i tug on them. Maybe the numbness is a prolonged thing, but i think i'd be worried if it got to that point- that would mean your totally cutting off circulation.

Secondly, is leaving ice inside the cunt dangerous is any way?

I've never heard of problems with ice, after all, they're not in the EXTREMS of cold, your freezer wont get them that cold. And secondly, you're body heat will start them melting as soon as you put them in, so i dont see how you should have problems with frostbite. And i've never seen any warnings about using ice for any other reason... and theres lots of ice discussions on here :-D

Thirdly, is there any sort of rope that i should avoid as crotch rope,

no idea onthis oen! good question. -waits to see answer-

Do i still need to look for a non-toxic ball?

I would, the sock is not so tightly woven that it will keep the ball sealed off from you... and just to be safe, i'd make sure it is. But.. i've never tried it, so i might be wrong.

Also, how do u clean the ropes used as crotch ropes later?

again, no idea. Haven't played with rope yet.

Good luck! and have fun :-D
Teni