I created these little tags for my knitting needle roll using Shrinky Dink plastic.
I made them 1.5cm square, used a normal hole punch for the hole, and a blue permanent marker for the writing.
After cooking they were just 5mm square, and most of them were a little skewed (not completely square) but I don't mind. They look just perfect to me.
I spent a little while sewing them on to the knitting roll so that I can tell at a glance which sized needle I'm after. It was pretty confusing before, and I didn't want to write on the fabric in case I want to rearrange the needles later. This way I can just snip them off and re-sew when the rearranging bug hits.
Hmmm, not the clearest pics. I'l see if I can get some better ones.