When its a tea cosy!
When I was opening presents at my birthday party, 4yo Juliet couldn't work out why I was given a beanie with holes in the sides, so Melissa got my big tea pot wearing its newly-created Ripple Tea Cosy (crocheted just in time for the big event) to demonstrate. The fact the gift was a giant breast was not worth noting however! Not sure she was fully convinced tea pots wear jumpers though!
Ripple tea cosy pattern by Justjen :) I was going to make this last year but baby treasures pushed it down the queue!!!