The Joanns I go to is more than happy to give them. I was there the other day and asked for a couple, I am using a walker so I could only carry a couple with the other things I bought, she said pull your car around and I'll bring a bunch to you! so cool!
I also found out that if you contact the people who runs somebody's election they also are more than happy to give you the elections signs you see on the side of the road, these are coroplast
David