Here's something you can make at any time of year to protect your precious phone from bumps and scratches (but not from being dropped down the toilet), using a devilishly simple way of knitting in the round on ordinary needles.
Read on for our fully-illustrated instructions, or click here to download the no-nonsense 1 sheet pdf version.
Pattern by No Idle Han. Many thanks to Penny Vickers for her astute pattern testing and Sayed Hasan for his photographic expertise.
Difficulty level: average
Sizing: One size fits most smart phones (approx. 14cm circumference)
..and you're done!