I too have had an incredibly difficult time finding plaster washers locally - I'm in Colorado. They seem to be more readily avaialble on the east-coast. More old houses? More renovatoin work?
Anybody have a good source on-line for plaster washers? So far the one place I have tried couldn't tell me if they had a secure server to take the order, he just kept reiterating - we are the only ones who see the email. Doesn't exactly inspire confidence!