If not: here are some T-shirt Yarns.
I have found them at Michael's Craft Stores and Pat Catan Craft Stores. I am sure that they are everywhere but what do you do with them? Well, I am glad that you asked. Here are some ideas.
I made some coaster's but since my photography skills suck I only took one picture.
Crocheted Baskets, which I am in the middle of doing. The yarn might be hard to pull through, so, take your vitamins before tackling the project.
All of these projects can be found on Pinterest. The pattern aren't all that unusual and can be found on the internet. All you need is some T-shirts and imagination.
Until we meet again,