I have a few too. No idea where I got them but they are definitely 70's or 80's colours.
But I especially like the padded wooden hangers that my mother made me many years ago. It is hard to find wooden hangers anymore, so when my DD moved into their (new to them) house and discovered a basement closet full of old hangers--dozens of wooden ones--I kindly offered to get rid of them for her

. Now all my shirts and Tee's hang with nicely rounded shoulders.