Stretch a bobble over the hair and around the doughnut ring
Ta daa! (I missed a bit which is annoying, grr)
This should work for any hair lengths as long as you can get your hair into a bobble and around the doughnut. It was easier when I had longer hair as the ends weren't so thick but it is still manageable! Sorry the quality of these gifs isn't great but the quality was reduced when I uploaded them.