Essie from Auckland writes,
To make a big tea cosy, not being a skilled sewer (!), I cut the arms off my worn old jumper, neatened the edges and then went online to find out how to make a pompom to attach to the top of my cosy. I bought two balls of wool in the same colour and it made a humungous pompom which helped to keep the top of the teapot warm. I could have used the cutoff arms to make a matching base for the teapot to sit on but that looked like too much work.