It's all black and white

I started out with two men's t-shirts, one black and one white.

I didn't want to be advertising lager so the first thing to go was the Carling logo

I then cut the neckline lower and removed the sleeves, then placed one of my t-shirts on top and cut the sides away.

I cut half inch strips from the white t-shirt and pulled them taut so that they rolled up.

I used these as my thread to 'darn' the hole and make running stitches to decorate. I thought I would have to make holes for this thick thread to go through but it pulled through very easily using a darning needle. 
After sewing up the sides, and hemming the bottom, neck and sleeve edges, it now looks like this

Now I'll be honest and tell you that when I had the idea to do this, I intended to keep the hole at the front, but it turned out to be indecently low, which is why it's at the back.  I wasn't going to do anything with the other side but as it turned out to be at the front, I did the lines of running stitch with the t-shirt thread to tie in with the back.