I made an Ugly Tie quilt from big Poly ties of mostly the 1970s... it was fun but not for everyone. I did crazy blocks and had to use the ties I picked out blindly.
I also did a lap sized log cabin with silk ties, they were from a friend's grandfather. It was much more subdued and I foundation pieced on wool. It was a memorial project.
The biggest thing I learned is how dirty ties are, even if they don't look it. The gutting and prepping is the big thing. While there can be a lot of fabric in a tie, there is a lot that was simply unusable by me so I got a lot faster in the prep and what I was willing to work with.