That red line is how you should cut it. Do that to both arms. Okay??? Alright. When you've cut off both of the sleeves (and a little of the body- like the line says), you are going to cut around the neck in the back. I have a picture to show what I mean, because, in my opinion, that is a very confusing sentence.
I bet you know what the red line is for, don't you. :) Smart readers you are, I'm sure you can figure it out, even if I don't tell you. Which I will anyway. You're supposed to be cutting along that red line. Okay? Once you cut it, it's going to look like this:
After you do that, you're going to turn it over, to see the back. If you haven't noticed already, there is going to be a flap of fabric on the top that isn't being held up by anything. You are going to cut that off. Otherwise, you'll have a flap of fabric hanging around, and that just looks like you've gotten half way through this tutorial and then were to lazy to finish. :P
There are several ways that you can make this thinner. First, you can just cut off some of the fabric from both sides, and then sew it together. That would work, but, in my opinion, that would be a little boring. I decided to lace it up. You know that extra fabric you've cut up? Well, take it, make strips from it, then sew them together, like they look like in the next picture. You're also going to want to start making the holes to thread them through. The next picture also shows you about how far away and what not. 
When you have enough holes for you to thread the lace through, all the way up to the top, you are going to want to start threading it. 
When you've finished that step, tie the lace in a bow, and try the halter top on. I have a picture of what mine looks like from the back, below this. (you can see it from the front at the top of this post.) Have fun cutting up all your old t-shirts now!! :)
Remember to continue reading- we won't have posted all the time, but we do work on things. 
Heya people! first tutorial! yay!!!!
next, take a ruler, and, using a pen (or pencil, or marking pencil), make a large "X", going from corner to corner, for all the corners. Then, measure in from the edge, one half inch, and mark where it touches the X. Do this for all four corners. (note: make SURE you pin the fabric all together before this next step!!!) Now, take the fabric "sandwich" which is pinned together, and sew right down that X. do one diagonal, then do the other one.
Remember those marks on the "X" I told you to make? well, start at one of them, and sew to the next one. Then, to the next one, and the next one, until you've sewn a square.
Ok! You could use it just like this. But it doesn't look as finished, and it'll have a tendency to fray, or fall apart. So, we use bias tape. Bias tape is basically a long piece of fabric, with the sides pressed into the center. You're going to un-fold the right flap of fabric. (I mean, it's on the right side, not the left.) take the edge you've unfolded, and place it so that where the fold is when the side is pressed to the middle, is a little to the right side of that square of stitching.
Just sew the bias tape around, like that. If you're going to make a tab for the potholder, sew it under the bias tape.Make sure you go in a full square. Then, if there is any extra fleece/felt poking out, trim it. (note: make sure you don't cut the stitching. o.O that would be bad.) You should also trim the corners- that way it's less bulky, and easier to sew.
