another +1 for the 'election sign' suggestion. As it is, I have as many and as large of signs possible, put up in my yard. The night of the vote, they get removed anyways, so it's a win/win situation for both of us. They get the advertisement, and we get the backers.
Cut them up to fit the collapsible and portable target frames, and they're golden for a long time. Simply because the other dickheads at the range around here, prefer to actually shoot the target frames to 'see' the effect of their sks bullets and the "devastation" that they portray.
The corrugated plastic works fantastic, and lasts surprisingly long.