I wanted a vintagey one, but wasn't able to find one I liked on Craigslist. A few days later, we went to our Tita (aunt) Ruthie's house, and I saw the exact kind of chair I was looking for. I (totally innocently, of course) asked her about it and she actually gave it to me to use while Rory's using a high chair. Awesome!
I spent about 10 minutes sewing it together, and here you have it.
A brand new, vintage, totally operational and relatively safe high chair.