My friend Claire, the 'Felted Ferret' made me a hot water bottle cover from a felted angora jumper last year, so I thought I'd have a go (as daughter L now pinches that one for herself).
I bought an angora/cashmere Principles jumper for £1 at a car boot sale last year, and have worn it to death for work until it's shrunk and bobbly - so decided to reuse and upcycle it. I aready had the hot water bottle and other materials, so it's not cost me anything to make.
I washed it at 60 degrees, then did a bit of applique with vintage fabric, buttons and an old wool blanket...
I always use iron-on interfacing when doing applique.
I used one of the frilly cuffs for the neck of the cover.