I had seen instructions on how to turn a t-shirt into a "pillow case" style jumper. However, the illustrator/graphic artist in me wanted to do some screen printing too. What's better than a wonderful floral border?
Step 1: Materials needed
You really do not need much else other than the t-shirt (usually an adult large) and whatever you're going to use for the tie strings.
Don't stop there though - go crazy decorating! Add jewels, appliques, iron on transfers - or as this instructable shows - screen printed floral border.
For screen prints you can use any type of t-shirt material. For iron on transfers, I have found that 50/50 t-shirt material is the best. Cotton tends to have too much "moisture" within it that the ink does not adhere well.
When in doubt, read the instructions on whatever image process you are using.