If a new colour is to be knitted
it is tied to the old thread with
a double knot, then the knot
is fed to the inside and the
ends of the threads placed
on their threads so that a
few stitches are knitted twice
before and after the knot.
Wool, yarn and string are
suitable for knitting. With a bit
of skill you can use the cords
to make doilies, oven cloths,
pin cushions and many other
things.