How can I upcycle vintage tiles?

Here's a link with lots of ideas for you:

https://www.pinterest.com/mmochinski/upcycle-ties/

You can make a belt: https://www.craftylittlegnome.com/how-to-make-a-belt-from-an-old-tie/

Louise...You and use to cover the bottom of a straight chair using the over and under method.

Ties can be made into a pillow, placemats, or table runner.

File the front part of stairs . Use them to make serving trays ( would make a great gift ! ) by staining or painting a piece of wood , you can add trim around the edges and attach 2 cabinet handles then add your files to the top !