I have finished my hot water bottle covers! I shall be toasty at the weekend!
The middle one is rabbit fur and the two side ones are fleece.
The two fleece ones were made but cutting out three pieces, hemming the 2 short pieces and sandwiching them together and stitching round them, before turning them inside out. The fur one was made by stitching the skin in a rectangle.
They all work and should hopefully keep mt snug in my sleeping bag when camping!