I have a bag of around 20 to 30 old neckties. I want to know what to do with them
Here's a link with lots of ideas for you:
Here are some fun projects to try!
Break them down and use them for a quilt or small blanket.
I made a phone case out of an old tie https://vickymyerscreations.co.uk/tutorial-2/make-your-own-phone-case/