I got some more information from the gal who wanted info on sewing her lips together:
It would just be for a photoshoot. my boyfriend would be there for support and to make sure nothing goes wrong, but i am probably going to be doing it myself. he is very insistant that he doesn't want to "hurt me" even if i'm asking him to. it's for the lips on my face. i have been looking into suture kits. would that be best for the situation.
It depends on how you want the image to look. One of the easiest ways is to use long hypodermic tips and spear both lips with the needles. Then use some type of cord or ribbon (that has been suitably prepped--certain types of cloth can be autoclaved) and lace it around the needles. I think that looks aesthetically pleasing--kind of corset-like.
If you want actual "thread" through the piercings then you are best off with a thick gauge suture thread. Unfortunately, compared to hypo tips and piercing needles, most suture needles are TOUGH to push through the skin! That's all going to be quite a bit bloodier than the first suggestion I made.
You could go with a larger size, like a 12 ga and put 14 gauge tygon through. But it doesn't tie well like thread or fabric.
It depends on the affect you wish to achieve--but make sure you prep the area with a surgical scrub, wear gloves, and use sterile implements. That means autoclaved! Not dunked in alcohol or put over a flame!!
Good luck and let me know how it goes.