I went to one estate sale and got a small bundle of pins for $20. Some cool ones in there such as the WWII pin, 1960s auto memorabilia pins, a pair of old athletic award pins, Hopalong Cassidy pin, etc. I like old pins. I once went to a yard sale and bought a large trash bag full of someone’s lifelong pin collection. It is kind of sad when I find things like that but I do treasure them when I find them and also pass those items along to others who will treasure them even more.