I'm not sure if 'rummage' sales are a Pittsburgh thing or not, lol but they're more or less an organized garage sale, but generally hosted in one location, like a school, fire hall or church- normally churches.
But yeah, this is a poor example for me to bring up having this as a rummage sale, cause that would indicate one would have to 'rummage' through something in order to purchase something, and not one of those is even happening here XD
but still..
The word 'rummage sale' is still fun to say 8D