Granny is keeping warm

 For Christmas  I wanted to make
a hot water bottle cosy for my daughter-in-law.
I bought
 a pattern by Millionbells on Ravelry
 because of the way the grannies
were laid out on the diagonal.
But as I worked on the pattern I soon discovered that there was
no opening to remove the bottle.
 Having a cosy that was removable was important
to me because I didn't want to end up
with a wet cosy every time I filled it.

Unfortunately adding an opening to the pattern
 would be difficult because of the layout

of the grannies.
Believe me I tried.
 So I decided to make up my own pattern

using the same squares that I had already made from pattern.

 

For the opening I went with a long zipper
 that wrapped around three sides.

This made it easy to insert or
remove the bottle without stretching
the cosy out of shape.