Don't know if anyone has done it or not, but is there a good hair gel to use for her hair? Thing keeps frizzing and getting loose after a while and I want it to stay in shape like the new Black Widow figure.
You can try the boiling water trick I detailed above if you are going to put it in one pose and leave it.
But if you are going to handle it a lot, you can do that each time you repose.