While at Michaels yesterday (looking for stuff for my daughter's b-day party), I saw t-shirt yarn for sale in the center aisle! I don't think it was called the same and probably wasn't made out of recycled t-shirts, but it was the same idea. I was just surprised because I hadn't thought it had become so mainstream!
Here is the TUTORIAL I used to get started making t-yarn
(P.S. it's much less expensive to make it yourself~ especially if you use t-shirts you already have).
I've noticed that I get a lot of traffic to my blog looking to learn how to make t-shirt flowers.
For my flowers (like below), I used this tutorial, but with t-shirt fabric. Also, I cut my pieces in more of a heart shape when folded, so when they are opened, they look like flowers with petals, instead of circles. I also DO sew them together, along with using glue, for extra strength. Does that make sense?;)
Here are a few more t-shirt tutorials that look like fun:
I posted a loooong time ago about a t-shirt shag rug I made. I had a lot of requests for a tutorial, but I never got around to making one. Today, I found a tutorial for a t-shirt latch hook rug on Pinterest. I made mine differently, but the look is the same. For mine, I made a t-shirt base by sewing two t-shirts together in the shape I wanted my rug. I then sewed on the cut pieces of t-shirt in a spiral onto the base. For my version, I would recommend drawing the spiral line of where you want to sew the t-shirt pieces on, to make the process easier and more uniform. To make the pieces to sew onto the base, I cut up the t-shirts into t-shirt yarn, then cut the yarn into pieces double the length I wanted the shag to be. You will sew on the pieces in the middle of each piece, doubling them. I think my version would also work great for pillows or blankets.
Good luck! I will try to make a photo tutorial on this someday!