In today's review of Jessica Jones, yo showed her wearing a scarf. You can do the same easily.
First step? Grab a Black Series Jyn Erso - she shouldn't be hard to find, and is probably marked down right now. Then, simply cut off the upper part of her hood: trimming the left side is easy, because it barely connects over there anyway, but doing the right side will take a little more judgement on your part.
Just remember, you can always cut more off, you can't cut less: so go high, test it out on the figure, and if you need to shave a little more off, you can.
It probably won't look like the scarf will fit, but don't worry: when you put the head back on, her hair will push the scarf down and help hold everything in place.