After the complete failure of trying to make the felted jumper into a softie, I appliqued it onto a new cushion cover instead. I used the same base fabric as my one of my new art canvasses, so now I have a cute little cushion for the couch.
There is however half of a felted jumper left over, so I don't think that I can truly say that I completed the challenge...... stay tuned for more felty jumper to come in the future!