You can create this rope-like effect by simply pulling loose threads on a T shirt.
This DIY isn't terribly difficult, but it is time consuming. It took me about 40 minutes to do each sleeve. Luckily, this doesn't require too much attention and can be done while watching Netflix =)
- T shirt (I used a man's undershirt- I dyed it grey]
- Sharp scissors
|[Cut off the hem at the bottom of the sleeves]|
|[These next few steps are optional. My t shirt was really long so I cut off the bottom and gave it a asymmetrical hem]|
|[Then I cut off the neckband to create a wide scoop neck]|
|[I took some of the excess fabric left over from the bottom hem and I made a new neckband with it]|