This is what I made with them! A sewing bag.
I started by cutting of the main body of the jumper to use for the bag.
I now have a less-than-half jumper in case that ever comes into fashion.
I decided to make the bag the same width as the jumper so I only needed to sew the bottom side. I took to the sewing machine and to my surprise the wool went through fine.
I sewed the lining and the wool together and put them through the slits in the wooden handles, then hand-sewed them in place.
The last thing I needed to do was cover up the holes in the jumper. I found a crochet doily which I'd found at the Scrap Store and sewed it to a piece of grey felt. I then glued and sewed the felt to the bag.
My Grandad didn't recognise his old jumper when I showed him the bag!