I'm embarrassed to say I don't know what an IT is....loops are probably your best bet. Or just about any IT (can even get it at cat stores i believe if you want to do it on a budget)
Invisible thread. It comes in two types - regular (IT) and elastic (IET) which stretches and which is used to make loops.
I'm embarrassed to say I don't know what an IT is....
Book
you use your magic powers... duh! lolThe better question is how do you find invisible thread if you can't see it?