I got inspired by Skacore_Princess and made my own tshirt skirt.
The white part was a large tshirt I got free with my fabric printer paper. I would definitely use a much larger one next time as the large had no flow to the skirt, but it is what I had to hand and now I have learned something ;)
The black and red were from other old tshirts that were already partly re-used.

As the white was pretty see through, I made modesty flaps :)