Here are a few ideas https://www.pinterest.com/pin/342414377915223437/
I have seen some really pretty vests made using ties. Quilts, too.
Here's a link: https://thesewingloftblog.com/13-creative-ways-to-reuse-mens-ties/
We used to have a patchwork quilt made from old ties. It was pretty.
Use as is or open up the seam and iron out flat. You can weave ties into place mats or table runners, see together to make a length of material to make as just about anything you want. Vest, skirt, curtains, throw pillow cover, quilt or quilt patches, etc.