I've seen a lot of really lovely coloured yarn around, but it's been recycled from old t-shirts.
I thought I'd have a go myself and show the process of how it's done.
My boyfriend is a screen printer, so we have a lot of t-shirts lying round. My favourite shade being this grey, so that's what I used. If you go out to buy t-shirts for this (get cheapo ones), get the largest size you can, the bigger the better! If possible, try and use a t-shirt that has no printing on at all.
2. Along one of the sides, make some snips with your scissors, evenly along. They can be any width, but I did mine about 1.5cm wide.
Unfold your t-shirt so the un-cut inch is now in the middle. From the bottom, cut up on a diagonal. SEE DIAGRAM ABOVE. Cutting on this diagonal is what makes the yarn one long piece.
What will you make with your t-shirt yarn? The thinner you cut the strips of t-shirt, the longer it will be. So keep that in mind if you have a particular project you want to make. You can make all sorts really, chunky scarves, blankets, pretty cool bath mats and I've seen some amazing baskets made from t-shirt yarn.
I decided to go for a really large scale granny square blanket. Using a 15mm hook, and a piece of regular acrylic yarn too (for a bit of colour).... here's what I'm making:
Ash also got involved in the fun, and he is making a blanket too. He's doing straight crochet rows and alternating other colours mixed in:
I am really enjoying the process of this, but if it's not for you, then here's an alternative. You can buy t-shirt yarn ready made (from many online shops). It can be pricey but comes in A LOT of colours.