I am sure we all have old jumpers that are no longer in use or end in thrift stores. To get some fun out of these I have started to make scarves in the moebius shape.
The scarves are felted in a grid with squares of wool from a variety of jumpers. I have mostly used wool but to get more bright colors have also included bits of cotton jumpers.
The sizes varies a bit and the felts are in looser or denser grids.