Hello!! I will be doing my first boob with torso cake, and I was wondering how to roll such a large piece of fondant, and how do I put it on such a large piece cake without any wrinkles or rips?

Is it in a standing position or is it going to lay flat?

i roll fondant on a sheet of vinyl (the clear stuff that's soft and flexible and used to protect table clothes ) -- have several sizes for different needs.

advantages:
> easy to get it very smooth
> fondant "clings" to vinyl well enough that you just flip the whole thing over on top of the cake and then peel the vinyl away -- no rips or tears (that is until you mess up the smoothing )

you can get vinyl in fabric stores -- it's on a roll and they cut to length. I got a 3' foot wide piece full width of roll and then cut it into several different size pieces.

I use a large wilton mat and I usually rub some crisco on the mat before rolling a large piece of fondant to make sure that when I roll it on my roller that it don't stick to the mat.

i've done both crisco and powdered sugar on the vinyl with about equal success.

tho' the sugar is easier to clean off which is a factor for me.